` elements.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * The CSS class name of the select element.\n */\n className: PropTypes.string,\n\n /**\n * The default element value. Use when the component is not controlled.\n */\n defaultValue: PropTypes.any,\n\n /**\n * If `true`, the select will be disabled.\n */\n disabled: PropTypes.bool,\n\n /**\n * If `true`, the selected item is displayed even if its value is empty.\n */\n displayEmpty: PropTypes.bool,\n\n /**\n * The icon that displays the arrow.\n */\n IconComponent: PropTypes.elementType.isRequired,\n\n /**\n * Imperative handle implementing `{ value: T, node: HTMLElement, focus(): void }`\n * Equivalent to `ref`\n */\n inputRef: refType,\n\n /**\n * The ID of an element that acts as an additional label. The Select will\n * be labelled by the additional label and the selected value.\n */\n labelId: PropTypes.string,\n\n /**\n * Props applied to the [`Menu`](/api/menu/) element.\n */\n MenuProps: PropTypes.object,\n\n /**\n * If `true`, `value` must be an array and the menu will support multiple selections.\n */\n multiple: PropTypes.bool,\n\n /**\n * Name attribute of the `select` or hidden `input` element.\n */\n name: PropTypes.string,\n\n /**\n * @ignore\n */\n onBlur: PropTypes.func,\n\n /**\n * Callback function fired when a menu item is selected.\n *\n * @param {object} event The event source of the callback.\n * You can pull out the new value by accessing `event.target.value` (any).\n * @param {object} [child] The react element that was selected.\n */\n onChange: PropTypes.func,\n\n /**\n * Callback fired when the component requests to be closed.\n * Use in controlled mode (see open).\n *\n * @param {object} event The event source of the callback.\n */\n onClose: PropTypes.func,\n\n /**\n * @ignore\n */\n onFocus: PropTypes.func,\n\n /**\n * Callback fired when the component requests to be opened.\n * Use in controlled mode (see open).\n *\n * @param {object} event The event source of the callback.\n */\n onOpen: PropTypes.func,\n\n /**\n * Control `select` open state.\n */\n open: PropTypes.bool,\n\n /**\n * @ignore\n */\n readOnly: PropTypes.bool,\n\n /**\n * Render the selected value.\n *\n * @param {any} value The `value` provided to the component.\n * @returns {ReactNode}\n */\n renderValue: PropTypes.func,\n\n /**\n * Props applied to the clickable div element.\n */\n SelectDisplayProps: PropTypes.object,\n\n /**\n * @ignore\n */\n tabIndex: PropTypes.oneOfType([PropTypes.number, PropTypes.string]),\n\n /**\n * @ignore\n */\n type: PropTypes.any,\n\n /**\n * The input value.\n */\n value: PropTypes.any,\n\n /**\n * The variant to use.\n */\n variant: PropTypes.oneOf(['standard', 'outlined', 'filled'])\n} : void 0;\nexport default SelectInput;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport { mergeClasses } from '@material-ui/styles';\nimport SelectInput from './SelectInput';\nimport formControlState from '../FormControl/formControlState';\nimport useFormControl from '../FormControl/useFormControl';\nimport withStyles from '../styles/withStyles';\nimport ArrowDropDownIcon from '../internal/svg-icons/ArrowDropDown';\nimport Input from '../Input';\nimport { styles as nativeSelectStyles } from '../NativeSelect/NativeSelect';\nimport NativeSelectInput from '../NativeSelect/NativeSelectInput';\nimport FilledInput from '../FilledInput';\nimport OutlinedInput from '../OutlinedInput';\nexport var styles = nativeSelectStyles;\n\nvar _ref = /*#__PURE__*/React.createElement(Input, null);\n\nvar _ref2 = /*#__PURE__*/React.createElement(FilledInput, null);\n\nvar Select = /*#__PURE__*/React.forwardRef(function Select(props, ref) {\n var _props$autoWidth = props.autoWidth,\n autoWidth = _props$autoWidth === void 0 ? false : _props$autoWidth,\n children = props.children,\n classes = props.classes,\n _props$displayEmpty = props.displayEmpty,\n displayEmpty = _props$displayEmpty === void 0 ? false : _props$displayEmpty,\n _props$IconComponent = props.IconComponent,\n IconComponent = _props$IconComponent === void 0 ? ArrowDropDownIcon : _props$IconComponent,\n id = props.id,\n input = props.input,\n inputProps = props.inputProps,\n label = props.label,\n labelId = props.labelId,\n _props$labelWidth = props.labelWidth,\n labelWidth = _props$labelWidth === void 0 ? 0 : _props$labelWidth,\n MenuProps = props.MenuProps,\n _props$multiple = props.multiple,\n multiple = _props$multiple === void 0 ? false : _props$multiple,\n _props$native = props.native,\n native = _props$native === void 0 ? false : _props$native,\n onClose = props.onClose,\n onOpen = props.onOpen,\n open = props.open,\n renderValue = props.renderValue,\n SelectDisplayProps = props.SelectDisplayProps,\n _props$variant = props.variant,\n variantProps = _props$variant === void 0 ? 'standard' : _props$variant,\n other = _objectWithoutProperties(props, [\"autoWidth\", \"children\", \"classes\", \"displayEmpty\", \"IconComponent\", \"id\", \"input\", \"inputProps\", \"label\", \"labelId\", \"labelWidth\", \"MenuProps\", \"multiple\", \"native\", \"onClose\", \"onOpen\", \"open\", \"renderValue\", \"SelectDisplayProps\", \"variant\"]);\n\n var inputComponent = native ? NativeSelectInput : SelectInput;\n var muiFormControl = useFormControl();\n var fcs = formControlState({\n props: props,\n muiFormControl: muiFormControl,\n states: ['variant']\n });\n var variant = fcs.variant || variantProps;\n var InputComponent = input || {\n standard: _ref,\n outlined: /*#__PURE__*/React.createElement(OutlinedInput, {\n label: label,\n labelWidth: labelWidth\n }),\n filled: _ref2\n }[variant];\n return /*#__PURE__*/React.cloneElement(InputComponent, _extends({\n // Most of the logic is implemented in `SelectInput`.\n // The `Select` component is a simple API wrapper to expose something better to play with.\n inputComponent: inputComponent,\n inputProps: _extends({\n children: children,\n IconComponent: IconComponent,\n variant: variant,\n type: undefined,\n // We render a select. We can ignore the type provided by the `Input`.\n multiple: multiple\n }, native ? {\n id: id\n } : {\n autoWidth: autoWidth,\n displayEmpty: displayEmpty,\n labelId: labelId,\n MenuProps: MenuProps,\n onClose: onClose,\n onOpen: onOpen,\n open: open,\n renderValue: renderValue,\n SelectDisplayProps: _extends({\n id: id\n }, SelectDisplayProps)\n }, inputProps, {\n classes: inputProps ? mergeClasses({\n baseClasses: classes,\n newClasses: inputProps.classes,\n Component: Select\n }) : classes\n }, input ? input.props.inputProps : {}),\n ref: ref\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? Select.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * If `true`, the width of the popover will automatically be set according to the items inside the\n * menu, otherwise it will be at least the width of the select input.\n */\n autoWidth: PropTypes.bool,\n\n /**\n * The option elements to populate the select with.\n * Can be some `MenuItem` when `native` is false and `option` when `native` is true.\n *\n * ⚠️The `MenuItem` elements **must** be direct descendants when `native` is false.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * The default element value. Use when the component is not controlled.\n */\n defaultValue: PropTypes.any,\n\n /**\n * If `true`, a value is displayed even if no items are selected.\n *\n * In order to display a meaningful value, a function should be passed to the `renderValue` prop which returns the value to be displayed when no items are selected.\n * You can only use it when the `native` prop is `false` (default).\n */\n displayEmpty: PropTypes.bool,\n\n /**\n * The icon that displays the arrow.\n */\n IconComponent: PropTypes.elementType,\n\n /**\n * The `id` of the wrapper element or the `select` element when `native`.\n */\n id: PropTypes.string,\n\n /**\n * An `Input` element; does not have to be a material-ui specific `Input`.\n */\n input: PropTypes.element,\n\n /**\n * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#Attributes) applied to the `input` element.\n * When `native` is `true`, the attributes are applied on the `select` element.\n */\n inputProps: PropTypes.object,\n\n /**\n * See [OutlinedInput#label](/api/outlined-input/#props)\n */\n label: PropTypes.node,\n\n /**\n * The ID of an element that acts as an additional label. The Select will\n * be labelled by the additional label and the selected value.\n */\n labelId: PropTypes.string,\n\n /**\n * See [OutlinedInput#label](/api/outlined-input/#props)\n */\n labelWidth: PropTypes.number,\n\n /**\n * Props applied to the [`Menu`](/api/menu/) element.\n */\n MenuProps: PropTypes.object,\n\n /**\n * If `true`, `value` must be an array and the menu will support multiple selections.\n */\n multiple: PropTypes.bool,\n\n /**\n * If `true`, the component will be using a native `select` element.\n */\n native: PropTypes.bool,\n\n /**\n * Callback function fired when a menu item is selected.\n *\n * @param {object} event The event source of the callback.\n * You can pull out the new value by accessing `event.target.value` (any).\n * @param {object} [child] The react element that was selected when `native` is `false` (default).\n */\n onChange: PropTypes.func,\n\n /**\n * Callback fired when the component requests to be closed.\n * Use in controlled mode (see open).\n *\n * @param {object} event The event source of the callback.\n */\n onClose: PropTypes.func,\n\n /**\n * Callback fired when the component requests to be opened.\n * Use in controlled mode (see open).\n *\n * @param {object} event The event source of the callback.\n */\n onOpen: PropTypes.func,\n\n /**\n * Control `select` open state.\n * You can only use it when the `native` prop is `false` (default).\n */\n open: PropTypes.bool,\n\n /**\n * Render the selected value.\n * You can only use it when the `native` prop is `false` (default).\n *\n * @param {any} value The `value` provided to the component.\n * @returns {ReactNode}\n */\n renderValue: PropTypes.func,\n\n /**\n * Props applied to the clickable div element.\n */\n SelectDisplayProps: PropTypes.object,\n\n /**\n * The input value. Providing an empty string will select no options.\n * This prop is required when the `native` prop is `false` (default).\n * Set to an empty string `''` if you don't want any of the available options to be selected.\n *\n * If the value is an object it must have reference equality with the option in order to be selected.\n * If the value is not an object, the string representation must match with the string representation of the option in order to be selected.\n */\n value: PropTypes.any,\n\n /**\n * The variant to use.\n */\n variant: PropTypes.oneOf(['filled', 'outlined', 'standard'])\n} : void 0;\nSelect.muiName = 'Select';\nexport default withStyles(styles, {\n name: 'MuiSelect'\n})(Select);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport * as React from 'react';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\n\nvar styles = function styles(theme) {\n return {\n thumb: {\n '&$open': {\n '& $offset': {\n transform: 'scale(1) translateY(-10px)'\n }\n }\n },\n open: {},\n offset: _extends({\n zIndex: 1\n }, theme.typography.body2, {\n fontSize: theme.typography.pxToRem(12),\n lineHeight: 1.2,\n transition: theme.transitions.create(['transform'], {\n duration: theme.transitions.duration.shortest\n }),\n top: -34,\n transformOrigin: 'bottom center',\n transform: 'scale(0)',\n position: 'absolute'\n }),\n circle: {\n display: 'flex',\n alignItems: 'center',\n justifyContent: 'center',\n width: 32,\n height: 32,\n borderRadius: '50% 50% 50% 0',\n backgroundColor: 'currentColor',\n transform: 'rotate(-45deg)'\n },\n label: {\n color: theme.palette.primary.contrastText,\n transform: 'rotate(45deg)'\n }\n };\n};\n/**\n * @ignore - internal component.\n */\n\n\nfunction ValueLabel(props) {\n var children = props.children,\n classes = props.classes,\n className = props.className,\n open = props.open,\n value = props.value,\n valueLabelDisplay = props.valueLabelDisplay;\n\n if (valueLabelDisplay === 'off') {\n return children;\n }\n\n return /*#__PURE__*/React.cloneElement(children, {\n className: clsx(children.props.className, (open || valueLabelDisplay === 'on') && classes.open, classes.thumb)\n }, /*#__PURE__*/React.createElement(\"span\", {\n className: clsx(classes.offset, className)\n }, /*#__PURE__*/React.createElement(\"span\", {\n className: classes.circle\n }, /*#__PURE__*/React.createElement(\"span\", {\n className: classes.label\n }, value))));\n}\n\nexport default withStyles(styles, {\n name: 'PrivateValueLabel'\n})(ValueLabel);","import _toConsumableArray from \"@babel/runtime/helpers/esm/toConsumableArray\";\nimport _slicedToArray from \"@babel/runtime/helpers/esm/slicedToArray\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport { chainPropTypes } from '@material-ui/utils';\nimport withStyles from '../styles/withStyles';\nimport useTheme from '../styles/useTheme';\nimport { alpha, lighten, darken } from '../styles/colorManipulator';\nimport useIsFocusVisible from '../utils/useIsFocusVisible';\nimport ownerDocument from '../utils/ownerDocument';\nimport useEventCallback from '../utils/useEventCallback';\nimport useForkRef from '../utils/useForkRef';\nimport capitalize from '../utils/capitalize';\nimport useControlled from '../utils/useControlled';\nimport ValueLabel from './ValueLabel';\n\nfunction asc(a, b) {\n return a - b;\n}\n\nfunction clamp(value, min, max) {\n return Math.min(Math.max(min, value), max);\n}\n\nfunction findClosest(values, currentValue) {\n var _values$reduce = values.reduce(function (acc, value, index) {\n var distance = Math.abs(currentValue - value);\n\n if (acc === null || distance < acc.distance || distance === acc.distance) {\n return {\n distance: distance,\n index: index\n };\n }\n\n return acc;\n }, null),\n closestIndex = _values$reduce.index;\n\n return closestIndex;\n}\n\nfunction trackFinger(event, touchId) {\n if (touchId.current !== undefined && event.changedTouches) {\n for (var i = 0; i < event.changedTouches.length; i += 1) {\n var touch = event.changedTouches[i];\n\n if (touch.identifier === touchId.current) {\n return {\n x: touch.clientX,\n y: touch.clientY\n };\n }\n }\n\n return false;\n }\n\n return {\n x: event.clientX,\n y: event.clientY\n };\n}\n\nfunction valueToPercent(value, min, max) {\n return (value - min) * 100 / (max - min);\n}\n\nfunction percentToValue(percent, min, max) {\n return (max - min) * percent + min;\n}\n\nfunction getDecimalPrecision(num) {\n // This handles the case when num is very small (0.00000001), js will turn this into 1e-8.\n // When num is bigger than 1 or less than -1 it won't get converted to this notation so it's fine.\n if (Math.abs(num) < 1) {\n var parts = num.toExponential().split('e-');\n var matissaDecimalPart = parts[0].split('.')[1];\n return (matissaDecimalPart ? matissaDecimalPart.length : 0) + parseInt(parts[1], 10);\n }\n\n var decimalPart = num.toString().split('.')[1];\n return decimalPart ? decimalPart.length : 0;\n}\n\nfunction roundValueToStep(value, step, min) {\n var nearest = Math.round((value - min) / step) * step + min;\n return Number(nearest.toFixed(getDecimalPrecision(step)));\n}\n\nfunction setValueIndex(_ref) {\n var values = _ref.values,\n source = _ref.source,\n newValue = _ref.newValue,\n index = _ref.index;\n\n // Performance shortcut\n if (values[index] === newValue) {\n return source;\n }\n\n var output = values.slice();\n output[index] = newValue;\n return output;\n}\n\nfunction focusThumb(_ref2) {\n var sliderRef = _ref2.sliderRef,\n activeIndex = _ref2.activeIndex,\n setActive = _ref2.setActive;\n\n if (!sliderRef.current.contains(document.activeElement) || Number(document.activeElement.getAttribute('data-index')) !== activeIndex) {\n sliderRef.current.querySelector(\"[role=\\\"slider\\\"][data-index=\\\"\".concat(activeIndex, \"\\\"]\")).focus();\n }\n\n if (setActive) {\n setActive(activeIndex);\n }\n}\n\nvar axisProps = {\n horizontal: {\n offset: function offset(percent) {\n return {\n left: \"\".concat(percent, \"%\")\n };\n },\n leap: function leap(percent) {\n return {\n width: \"\".concat(percent, \"%\")\n };\n }\n },\n 'horizontal-reverse': {\n offset: function offset(percent) {\n return {\n right: \"\".concat(percent, \"%\")\n };\n },\n leap: function leap(percent) {\n return {\n width: \"\".concat(percent, \"%\")\n };\n }\n },\n vertical: {\n offset: function offset(percent) {\n return {\n bottom: \"\".concat(percent, \"%\")\n };\n },\n leap: function leap(percent) {\n return {\n height: \"\".concat(percent, \"%\")\n };\n }\n }\n};\n\nvar Identity = function Identity(x) {\n return x;\n};\n\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n height: 2,\n width: '100%',\n boxSizing: 'content-box',\n padding: '13px 0',\n display: 'inline-block',\n position: 'relative',\n cursor: 'pointer',\n touchAction: 'none',\n color: theme.palette.primary.main,\n WebkitTapHighlightColor: 'transparent',\n '&$disabled': {\n pointerEvents: 'none',\n cursor: 'default',\n color: theme.palette.grey[400]\n },\n '&$vertical': {\n width: 2,\n height: '100%',\n padding: '0 13px'\n },\n // The primary input mechanism of the device includes a pointing device of limited accuracy.\n '@media (pointer: coarse)': {\n // Reach 42px touch target, about ~8mm on screen.\n padding: '20px 0',\n '&$vertical': {\n padding: '0 20px'\n }\n },\n '@media print': {\n colorAdjust: 'exact'\n }\n },\n\n /* Styles applied to the root element if `color=\"primary\"`. */\n colorPrimary: {// TODO v5: move the style here\n },\n\n /* Styles applied to the root element if `color=\"secondary\"`. */\n colorSecondary: {\n color: theme.palette.secondary.main\n },\n\n /* Styles applied to the root element if `marks` is provided with at least one label. */\n marked: {\n marginBottom: 20,\n '&$vertical': {\n marginBottom: 'auto',\n marginRight: 20\n }\n },\n\n /* Pseudo-class applied to the root element if `orientation=\"vertical\"`. */\n vertical: {},\n\n /* Pseudo-class applied to the root and thumb element if `disabled={true}`. */\n disabled: {},\n\n /* Styles applied to the rail element. */\n rail: {\n display: 'block',\n position: 'absolute',\n width: '100%',\n height: 2,\n borderRadius: 1,\n backgroundColor: 'currentColor',\n opacity: 0.38,\n '$vertical &': {\n height: '100%',\n width: 2\n }\n },\n\n /* Styles applied to the track element. */\n track: {\n display: 'block',\n position: 'absolute',\n height: 2,\n borderRadius: 1,\n backgroundColor: 'currentColor',\n '$vertical &': {\n width: 2\n }\n },\n\n /* Styles applied to the track element if `track={false}`. */\n trackFalse: {\n '& $track': {\n display: 'none'\n }\n },\n\n /* Styles applied to the track element if `track=\"inverted\"`. */\n trackInverted: {\n '& $track': {\n backgroundColor: // Same logic as the LinearProgress track color\n theme.palette.type === 'light' ? lighten(theme.palette.primary.main, 0.62) : darken(theme.palette.primary.main, 0.5)\n },\n '& $rail': {\n opacity: 1\n }\n },\n\n /* Styles applied to the thumb element. */\n thumb: {\n position: 'absolute',\n width: 12,\n height: 12,\n marginLeft: -6,\n marginTop: -5,\n boxSizing: 'border-box',\n borderRadius: '50%',\n outline: 0,\n backgroundColor: 'currentColor',\n display: 'flex',\n alignItems: 'center',\n justifyContent: 'center',\n transition: theme.transitions.create(['box-shadow'], {\n duration: theme.transitions.duration.shortest\n }),\n '&::after': {\n position: 'absolute',\n content: '\"\"',\n borderRadius: '50%',\n // reach 42px hit target (2 * 15 + thumb diameter)\n left: -15,\n top: -15,\n right: -15,\n bottom: -15\n },\n '&$focusVisible,&:hover': {\n boxShadow: \"0px 0px 0px 8px \".concat(alpha(theme.palette.primary.main, 0.16)),\n '@media (hover: none)': {\n boxShadow: 'none'\n }\n },\n '&$active': {\n boxShadow: \"0px 0px 0px 14px \".concat(alpha(theme.palette.primary.main, 0.16))\n },\n '&$disabled': {\n width: 8,\n height: 8,\n marginLeft: -4,\n marginTop: -3,\n '&:hover': {\n boxShadow: 'none'\n }\n },\n '$vertical &': {\n marginLeft: -5,\n marginBottom: -6\n },\n '$vertical &$disabled': {\n marginLeft: -3,\n marginBottom: -4\n }\n },\n\n /* Styles applied to the thumb element if `color=\"primary\"`. */\n thumbColorPrimary: {// TODO v5: move the style here\n },\n\n /* Styles applied to the thumb element if `color=\"secondary\"`. */\n thumbColorSecondary: {\n '&$focusVisible,&:hover': {\n boxShadow: \"0px 0px 0px 8px \".concat(alpha(theme.palette.secondary.main, 0.16))\n },\n '&$active': {\n boxShadow: \"0px 0px 0px 14px \".concat(alpha(theme.palette.secondary.main, 0.16))\n }\n },\n\n /* Pseudo-class applied to the thumb element if it's active. */\n active: {},\n\n /* Pseudo-class applied to the thumb element if keyboard focused. */\n focusVisible: {},\n\n /* Styles applied to the thumb label element. */\n valueLabel: {\n // IE 11 centering bug, to remove from the customization demos once no longer supported\n left: 'calc(-50% - 4px)'\n },\n\n /* Styles applied to the mark element. */\n mark: {\n position: 'absolute',\n width: 2,\n height: 2,\n borderRadius: 1,\n backgroundColor: 'currentColor'\n },\n\n /* Styles applied to the mark element if active (depending on the value). */\n markActive: {\n backgroundColor: theme.palette.background.paper,\n opacity: 0.8\n },\n\n /* Styles applied to the mark label element. */\n markLabel: _extends({}, theme.typography.body2, {\n color: theme.palette.text.secondary,\n position: 'absolute',\n top: 26,\n transform: 'translateX(-50%)',\n whiteSpace: 'nowrap',\n '$vertical &': {\n top: 'auto',\n left: 26,\n transform: 'translateY(50%)'\n },\n '@media (pointer: coarse)': {\n top: 40,\n '$vertical &': {\n left: 31\n }\n }\n }),\n\n /* Styles applied to the mark label element if active (depending on the value). */\n markLabelActive: {\n color: theme.palette.text.primary\n }\n };\n};\nvar Slider = /*#__PURE__*/React.forwardRef(function Slider(props, ref) {\n var ariaLabel = props['aria-label'],\n ariaLabelledby = props['aria-labelledby'],\n ariaValuetext = props['aria-valuetext'],\n classes = props.classes,\n className = props.className,\n _props$color = props.color,\n color = _props$color === void 0 ? 'primary' : _props$color,\n _props$component = props.component,\n Component = _props$component === void 0 ? 'span' : _props$component,\n defaultValue = props.defaultValue,\n _props$disabled = props.disabled,\n disabled = _props$disabled === void 0 ? false : _props$disabled,\n getAriaLabel = props.getAriaLabel,\n getAriaValueText = props.getAriaValueText,\n _props$marks = props.marks,\n marksProp = _props$marks === void 0 ? false : _props$marks,\n _props$max = props.max,\n max = _props$max === void 0 ? 100 : _props$max,\n _props$min = props.min,\n min = _props$min === void 0 ? 0 : _props$min,\n name = props.name,\n onChange = props.onChange,\n onChangeCommitted = props.onChangeCommitted,\n onMouseDown = props.onMouseDown,\n _props$orientation = props.orientation,\n orientation = _props$orientation === void 0 ? 'horizontal' : _props$orientation,\n _props$scale = props.scale,\n scale = _props$scale === void 0 ? Identity : _props$scale,\n _props$step = props.step,\n step = _props$step === void 0 ? 1 : _props$step,\n _props$ThumbComponent = props.ThumbComponent,\n ThumbComponent = _props$ThumbComponent === void 0 ? 'span' : _props$ThumbComponent,\n _props$track = props.track,\n track = _props$track === void 0 ? 'normal' : _props$track,\n valueProp = props.value,\n _props$ValueLabelComp = props.ValueLabelComponent,\n ValueLabelComponent = _props$ValueLabelComp === void 0 ? ValueLabel : _props$ValueLabelComp,\n _props$valueLabelDisp = props.valueLabelDisplay,\n valueLabelDisplay = _props$valueLabelDisp === void 0 ? 'off' : _props$valueLabelDisp,\n _props$valueLabelForm = props.valueLabelFormat,\n valueLabelFormat = _props$valueLabelForm === void 0 ? Identity : _props$valueLabelForm,\n other = _objectWithoutProperties(props, [\"aria-label\", \"aria-labelledby\", \"aria-valuetext\", \"classes\", \"className\", \"color\", \"component\", \"defaultValue\", \"disabled\", \"getAriaLabel\", \"getAriaValueText\", \"marks\", \"max\", \"min\", \"name\", \"onChange\", \"onChangeCommitted\", \"onMouseDown\", \"orientation\", \"scale\", \"step\", \"ThumbComponent\", \"track\", \"value\", \"ValueLabelComponent\", \"valueLabelDisplay\", \"valueLabelFormat\"]);\n\n var theme = useTheme();\n var touchId = React.useRef(); // We can't use the :active browser pseudo-classes.\n // - The active state isn't triggered when clicking on the rail.\n // - The active state isn't transfered when inversing a range slider.\n\n var _React$useState = React.useState(-1),\n active = _React$useState[0],\n setActive = _React$useState[1];\n\n var _React$useState2 = React.useState(-1),\n open = _React$useState2[0],\n setOpen = _React$useState2[1];\n\n var _useControlled = useControlled({\n controlled: valueProp,\n default: defaultValue,\n name: 'Slider'\n }),\n _useControlled2 = _slicedToArray(_useControlled, 2),\n valueDerived = _useControlled2[0],\n setValueState = _useControlled2[1];\n\n var range = Array.isArray(valueDerived);\n var values = range ? valueDerived.slice().sort(asc) : [valueDerived];\n values = values.map(function (value) {\n return clamp(value, min, max);\n });\n var marks = marksProp === true && step !== null ? _toConsumableArray(Array(Math.floor((max - min) / step) + 1)).map(function (_, index) {\n return {\n value: min + step * index\n };\n }) : marksProp || [];\n\n var _useIsFocusVisible = useIsFocusVisible(),\n isFocusVisible = _useIsFocusVisible.isFocusVisible,\n onBlurVisible = _useIsFocusVisible.onBlurVisible,\n focusVisibleRef = _useIsFocusVisible.ref;\n\n var _React$useState3 = React.useState(-1),\n focusVisible = _React$useState3[0],\n setFocusVisible = _React$useState3[1];\n\n var sliderRef = React.useRef();\n var handleFocusRef = useForkRef(focusVisibleRef, sliderRef);\n var handleRef = useForkRef(ref, handleFocusRef);\n var handleFocus = useEventCallback(function (event) {\n var index = Number(event.currentTarget.getAttribute('data-index'));\n\n if (isFocusVisible(event)) {\n setFocusVisible(index);\n }\n\n setOpen(index);\n });\n var handleBlur = useEventCallback(function () {\n if (focusVisible !== -1) {\n setFocusVisible(-1);\n onBlurVisible();\n }\n\n setOpen(-1);\n });\n var handleMouseOver = useEventCallback(function (event) {\n var index = Number(event.currentTarget.getAttribute('data-index'));\n setOpen(index);\n });\n var handleMouseLeave = useEventCallback(function () {\n setOpen(-1);\n });\n var isRtl = theme.direction === 'rtl';\n var handleKeyDown = useEventCallback(function (event) {\n var index = Number(event.currentTarget.getAttribute('data-index'));\n var value = values[index];\n var tenPercents = (max - min) / 10;\n var marksValues = marks.map(function (mark) {\n return mark.value;\n });\n var marksIndex = marksValues.indexOf(value);\n var newValue;\n var increaseKey = isRtl ? 'ArrowLeft' : 'ArrowRight';\n var decreaseKey = isRtl ? 'ArrowRight' : 'ArrowLeft';\n\n switch (event.key) {\n case 'Home':\n newValue = min;\n break;\n\n case 'End':\n newValue = max;\n break;\n\n case 'PageUp':\n if (step) {\n newValue = value + tenPercents;\n }\n\n break;\n\n case 'PageDown':\n if (step) {\n newValue = value - tenPercents;\n }\n\n break;\n\n case increaseKey:\n case 'ArrowUp':\n if (step) {\n newValue = value + step;\n } else {\n newValue = marksValues[marksIndex + 1] || marksValues[marksValues.length - 1];\n }\n\n break;\n\n case decreaseKey:\n case 'ArrowDown':\n if (step) {\n newValue = value - step;\n } else {\n newValue = marksValues[marksIndex - 1] || marksValues[0];\n }\n\n break;\n\n default:\n return;\n } // Prevent scroll of the page\n\n\n event.preventDefault();\n\n if (step) {\n newValue = roundValueToStep(newValue, step, min);\n }\n\n newValue = clamp(newValue, min, max);\n\n if (range) {\n var previousValue = newValue;\n newValue = setValueIndex({\n values: values,\n source: valueDerived,\n newValue: newValue,\n index: index\n }).sort(asc);\n focusThumb({\n sliderRef: sliderRef,\n activeIndex: newValue.indexOf(previousValue)\n });\n }\n\n setValueState(newValue);\n setFocusVisible(index);\n\n if (onChange) {\n onChange(event, newValue);\n }\n\n if (onChangeCommitted) {\n onChangeCommitted(event, newValue);\n }\n });\n var previousIndex = React.useRef();\n var axis = orientation;\n\n if (isRtl && orientation !== \"vertical\") {\n axis += '-reverse';\n }\n\n var getFingerNewValue = function getFingerNewValue(_ref3) {\n var finger = _ref3.finger,\n _ref3$move = _ref3.move,\n move = _ref3$move === void 0 ? false : _ref3$move,\n values2 = _ref3.values,\n source = _ref3.source;\n var slider = sliderRef.current;\n\n var _slider$getBoundingCl = slider.getBoundingClientRect(),\n width = _slider$getBoundingCl.width,\n height = _slider$getBoundingCl.height,\n bottom = _slider$getBoundingCl.bottom,\n left = _slider$getBoundingCl.left;\n\n var percent;\n\n if (axis.indexOf('vertical') === 0) {\n percent = (bottom - finger.y) / height;\n } else {\n percent = (finger.x - left) / width;\n }\n\n if (axis.indexOf('-reverse') !== -1) {\n percent = 1 - percent;\n }\n\n var newValue;\n newValue = percentToValue(percent, min, max);\n\n if (step) {\n newValue = roundValueToStep(newValue, step, min);\n } else {\n var marksValues = marks.map(function (mark) {\n return mark.value;\n });\n var closestIndex = findClosest(marksValues, newValue);\n newValue = marksValues[closestIndex];\n }\n\n newValue = clamp(newValue, min, max);\n var activeIndex = 0;\n\n if (range) {\n if (!move) {\n activeIndex = findClosest(values2, newValue);\n } else {\n activeIndex = previousIndex.current;\n }\n\n var previousValue = newValue;\n newValue = setValueIndex({\n values: values2,\n source: source,\n newValue: newValue,\n index: activeIndex\n }).sort(asc);\n activeIndex = newValue.indexOf(previousValue);\n previousIndex.current = activeIndex;\n }\n\n return {\n newValue: newValue,\n activeIndex: activeIndex\n };\n };\n\n var handleTouchMove = useEventCallback(function (event) {\n var finger = trackFinger(event, touchId);\n\n if (!finger) {\n return;\n }\n\n var _getFingerNewValue = getFingerNewValue({\n finger: finger,\n move: true,\n values: values,\n source: valueDerived\n }),\n newValue = _getFingerNewValue.newValue,\n activeIndex = _getFingerNewValue.activeIndex;\n\n focusThumb({\n sliderRef: sliderRef,\n activeIndex: activeIndex,\n setActive: setActive\n });\n setValueState(newValue);\n\n if (onChange) {\n onChange(event, newValue);\n }\n });\n var handleTouchEnd = useEventCallback(function (event) {\n var finger = trackFinger(event, touchId);\n\n if (!finger) {\n return;\n }\n\n var _getFingerNewValue2 = getFingerNewValue({\n finger: finger,\n values: values,\n source: valueDerived\n }),\n newValue = _getFingerNewValue2.newValue;\n\n setActive(-1);\n\n if (event.type === 'touchend') {\n setOpen(-1);\n }\n\n if (onChangeCommitted) {\n onChangeCommitted(event, newValue);\n }\n\n touchId.current = undefined;\n var doc = ownerDocument(sliderRef.current);\n doc.removeEventListener('mousemove', handleTouchMove);\n doc.removeEventListener('mouseup', handleTouchEnd);\n doc.removeEventListener('touchmove', handleTouchMove);\n doc.removeEventListener('touchend', handleTouchEnd);\n });\n var handleTouchStart = useEventCallback(function (event) {\n // Workaround as Safari has partial support for touchAction: 'none'.\n event.preventDefault();\n var touch = event.changedTouches[0];\n\n if (touch != null) {\n // A number that uniquely identifies the current finger in the touch session.\n touchId.current = touch.identifier;\n }\n\n var finger = trackFinger(event, touchId);\n\n var _getFingerNewValue3 = getFingerNewValue({\n finger: finger,\n values: values,\n source: valueDerived\n }),\n newValue = _getFingerNewValue3.newValue,\n activeIndex = _getFingerNewValue3.activeIndex;\n\n focusThumb({\n sliderRef: sliderRef,\n activeIndex: activeIndex,\n setActive: setActive\n });\n setValueState(newValue);\n\n if (onChange) {\n onChange(event, newValue);\n }\n\n var doc = ownerDocument(sliderRef.current);\n doc.addEventListener('touchmove', handleTouchMove);\n doc.addEventListener('touchend', handleTouchEnd);\n });\n React.useEffect(function () {\n var slider = sliderRef.current;\n slider.addEventListener('touchstart', handleTouchStart);\n var doc = ownerDocument(slider);\n return function () {\n slider.removeEventListener('touchstart', handleTouchStart);\n doc.removeEventListener('mousemove', handleTouchMove);\n doc.removeEventListener('mouseup', handleTouchEnd);\n doc.removeEventListener('touchmove', handleTouchMove);\n doc.removeEventListener('touchend', handleTouchEnd);\n };\n }, [handleTouchEnd, handleTouchMove, handleTouchStart]);\n var handleMouseDown = useEventCallback(function (event) {\n if (onMouseDown) {\n onMouseDown(event);\n }\n\n event.preventDefault();\n var finger = trackFinger(event, touchId);\n\n var _getFingerNewValue4 = getFingerNewValue({\n finger: finger,\n values: values,\n source: valueDerived\n }),\n newValue = _getFingerNewValue4.newValue,\n activeIndex = _getFingerNewValue4.activeIndex;\n\n focusThumb({\n sliderRef: sliderRef,\n activeIndex: activeIndex,\n setActive: setActive\n });\n setValueState(newValue);\n\n if (onChange) {\n onChange(event, newValue);\n }\n\n var doc = ownerDocument(sliderRef.current);\n doc.addEventListener('mousemove', handleTouchMove);\n doc.addEventListener('mouseup', handleTouchEnd);\n });\n var trackOffset = valueToPercent(range ? values[0] : min, min, max);\n var trackLeap = valueToPercent(values[values.length - 1], min, max) - trackOffset;\n\n var trackStyle = _extends({}, axisProps[axis].offset(trackOffset), axisProps[axis].leap(trackLeap));\n\n return /*#__PURE__*/React.createElement(Component, _extends({\n ref: handleRef,\n className: clsx(classes.root, classes[\"color\".concat(capitalize(color))], className, disabled && classes.disabled, marks.length > 0 && marks.some(function (mark) {\n return mark.label;\n }) && classes.marked, track === false && classes.trackFalse, orientation === 'vertical' && classes.vertical, track === 'inverted' && classes.trackInverted),\n onMouseDown: handleMouseDown\n }, other), /*#__PURE__*/React.createElement(\"span\", {\n className: classes.rail\n }), /*#__PURE__*/React.createElement(\"span\", {\n className: classes.track,\n style: trackStyle\n }), /*#__PURE__*/React.createElement(\"input\", {\n value: values.join(','),\n name: name,\n type: \"hidden\"\n }), marks.map(function (mark, index) {\n var percent = valueToPercent(mark.value, min, max);\n var style = axisProps[axis].offset(percent);\n var markActive;\n\n if (track === false) {\n markActive = values.indexOf(mark.value) !== -1;\n } else {\n markActive = track === 'normal' && (range ? mark.value >= values[0] && mark.value <= values[values.length - 1] : mark.value <= values[0]) || track === 'inverted' && (range ? mark.value <= values[0] || mark.value >= values[values.length - 1] : mark.value >= values[0]);\n }\n\n return /*#__PURE__*/React.createElement(React.Fragment, {\n key: mark.value\n }, /*#__PURE__*/React.createElement(\"span\", {\n style: style,\n \"data-index\": index,\n className: clsx(classes.mark, markActive && classes.markActive)\n }), mark.label != null ? /*#__PURE__*/React.createElement(\"span\", {\n \"aria-hidden\": true,\n \"data-index\": index,\n style: style,\n className: clsx(classes.markLabel, markActive && classes.markLabelActive)\n }, mark.label) : null);\n }), values.map(function (value, index) {\n var percent = valueToPercent(value, min, max);\n var style = axisProps[axis].offset(percent);\n return /*#__PURE__*/React.createElement(ValueLabelComponent, {\n key: index,\n valueLabelFormat: valueLabelFormat,\n valueLabelDisplay: valueLabelDisplay,\n className: classes.valueLabel,\n value: typeof valueLabelFormat === 'function' ? valueLabelFormat(scale(value), index) : valueLabelFormat,\n index: index,\n open: open === index || active === index || valueLabelDisplay === 'on',\n disabled: disabled\n }, /*#__PURE__*/React.createElement(ThumbComponent, {\n className: clsx(classes.thumb, classes[\"thumbColor\".concat(capitalize(color))], active === index && classes.active, disabled && classes.disabled, focusVisible === index && classes.focusVisible),\n tabIndex: disabled ? null : 0,\n role: \"slider\",\n style: style,\n \"data-index\": index,\n \"aria-label\": getAriaLabel ? getAriaLabel(index) : ariaLabel,\n \"aria-labelledby\": ariaLabelledby,\n \"aria-orientation\": orientation,\n \"aria-valuemax\": scale(max),\n \"aria-valuemin\": scale(min),\n \"aria-valuenow\": scale(value),\n \"aria-valuetext\": getAriaValueText ? getAriaValueText(scale(value), index) : ariaValuetext,\n onKeyDown: handleKeyDown,\n onFocus: handleFocus,\n onBlur: handleBlur,\n onMouseOver: handleMouseOver,\n onMouseLeave: handleMouseLeave\n }));\n }));\n});\nprocess.env.NODE_ENV !== \"production\" ? Slider.propTypes = {\n /**\n * The label of the slider.\n */\n 'aria-label': chainPropTypes(PropTypes.string, function (props) {\n var range = Array.isArray(props.value || props.defaultValue);\n\n if (range && props['aria-label'] != null) {\n return new Error('Material-UI: You need to use the `getAriaLabel` prop instead of `aria-label` when using a range slider.');\n }\n\n return null;\n }),\n\n /**\n * The id of the element containing a label for the slider.\n */\n 'aria-labelledby': PropTypes.string,\n\n /**\n * A string value that provides a user-friendly name for the current value of the slider.\n */\n 'aria-valuetext': chainPropTypes(PropTypes.string, function (props) {\n var range = Array.isArray(props.value || props.defaultValue);\n\n if (range && props['aria-valuetext'] != null) {\n return new Error('Material-UI: You need to use the `getAriaValueText` prop instead of `aria-valuetext` when using a range slider.');\n }\n\n return null;\n }),\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The color of the component. It supports those theme colors that make sense for this component.\n */\n color: PropTypes.oneOf(['primary', 'secondary']),\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * The default element value. Use when the component is not controlled.\n */\n defaultValue: PropTypes.oneOfType([PropTypes.number, PropTypes.arrayOf(PropTypes.number)]),\n\n /**\n * If `true`, the slider will be disabled.\n */\n disabled: PropTypes.bool,\n\n /**\n * Accepts a function which returns a string value that provides a user-friendly name for the thumb labels of the slider.\n *\n * @param {number} index The thumb label's index to format.\n * @returns {string}\n */\n getAriaLabel: PropTypes.func,\n\n /**\n * Accepts a function which returns a string value that provides a user-friendly name for the current value of the slider.\n *\n * @param {number} value The thumb label's value to format.\n * @param {number} index The thumb label's index to format.\n * @returns {string}\n */\n getAriaValueText: PropTypes.func,\n\n /**\n * Marks indicate predetermined values to which the user can move the slider.\n * If `true` the marks will be spaced according the value of the `step` prop.\n * If an array, it should contain objects with `value` and an optional `label` keys.\n */\n marks: PropTypes.oneOfType([PropTypes.bool, PropTypes.array]),\n\n /**\n * The maximum allowed value of the slider.\n * Should not be equal to min.\n */\n max: PropTypes.number,\n\n /**\n * The minimum allowed value of the slider.\n * Should not be equal to max.\n */\n min: PropTypes.number,\n\n /**\n * Name attribute of the hidden `input` element.\n */\n name: PropTypes.string,\n\n /**\n * Callback function that is fired when the slider's value changed.\n *\n * @param {object} event The event source of the callback.\n * @param {number | number[]} value The new value.\n */\n onChange: PropTypes.func,\n\n /**\n * Callback function that is fired when the `mouseup` is triggered.\n *\n * @param {object} event The event source of the callback.\n * @param {number | number[]} value The new value.\n */\n onChangeCommitted: PropTypes.func,\n\n /**\n * @ignore\n */\n onMouseDown: PropTypes.func,\n\n /**\n * The slider orientation.\n */\n orientation: PropTypes.oneOf(['horizontal', 'vertical']),\n\n /**\n * A transformation function, to change the scale of the slider.\n */\n scale: PropTypes.func,\n\n /**\n * The granularity with which the slider can step through values. (A \"discrete\" slider.)\n * The `min` prop serves as the origin for the valid values.\n * We recommend (max - min) to be evenly divisible by the step.\n *\n * When step is `null`, the thumb can only be slid onto marks provided with the `marks` prop.\n */\n step: PropTypes.number,\n\n /**\n * The component used to display the value label.\n */\n ThumbComponent: PropTypes.elementType,\n\n /**\n * The track presentation:\n *\n * - `normal` the track will render a bar representing the slider value.\n * - `inverted` the track will render a bar representing the remaining slider value.\n * - `false` the track will render without a bar.\n */\n track: PropTypes.oneOf(['normal', false, 'inverted']),\n\n /**\n * The value of the slider.\n * For ranged sliders, provide an array with two values.\n */\n value: PropTypes.oneOfType([PropTypes.number, PropTypes.arrayOf(PropTypes.number)]),\n\n /**\n * The value label component.\n */\n ValueLabelComponent: PropTypes.elementType,\n\n /**\n * Controls when the value label is displayed:\n *\n * - `auto` the value label will display when the thumb is hovered or focused.\n * - `on` will display persistently.\n * - `off` will never display.\n */\n valueLabelDisplay: PropTypes.oneOf(['on', 'auto', 'off']),\n\n /**\n * The format function the value label's value.\n *\n * When a function is provided, it should have the following signature:\n *\n * - {number} value The value label's value to format\n * - {number} index The value label's index to format\n */\n valueLabelFormat: PropTypes.oneOfType([PropTypes.string, PropTypes.func])\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiSlider'\n})(Slider);","import _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _defineProperty from \"@babel/runtime/helpers/esm/defineProperty\";\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport Paper from '../Paper';\nimport { emphasize } from '../styles/colorManipulator';\nexport var styles = function styles(theme) {\n var emphasis = theme.palette.type === 'light' ? 0.8 : 0.98;\n var backgroundColor = emphasize(theme.palette.background.default, emphasis);\n return {\n /* Styles applied to the root element. */\n root: _extends({}, theme.typography.body2, _defineProperty({\n color: theme.palette.getContrastText(backgroundColor),\n backgroundColor: backgroundColor,\n display: 'flex',\n alignItems: 'center',\n flexWrap: 'wrap',\n padding: '6px 16px',\n borderRadius: theme.shape.borderRadius,\n flexGrow: 1\n }, theme.breakpoints.up('sm'), {\n flexGrow: 'initial',\n minWidth: 288\n })),\n\n /* Styles applied to the message wrapper element. */\n message: {\n padding: '8px 0'\n },\n\n /* Styles applied to the action wrapper element if `action` is provided. */\n action: {\n display: 'flex',\n alignItems: 'center',\n marginLeft: 'auto',\n paddingLeft: 16,\n marginRight: -8\n }\n };\n};\nvar SnackbarContent = /*#__PURE__*/React.forwardRef(function SnackbarContent(props, ref) {\n var action = props.action,\n classes = props.classes,\n className = props.className,\n message = props.message,\n _props$role = props.role,\n role = _props$role === void 0 ? 'alert' : _props$role,\n other = _objectWithoutProperties(props, [\"action\", \"classes\", \"className\", \"message\", \"role\"]);\n\n return /*#__PURE__*/React.createElement(Paper, _extends({\n role: role,\n square: true,\n elevation: 6,\n className: clsx(classes.root, className),\n ref: ref\n }, other), /*#__PURE__*/React.createElement(\"div\", {\n className: classes.message\n }, message), action ? /*#__PURE__*/React.createElement(\"div\", {\n className: classes.action\n }, action) : null);\n});\nprocess.env.NODE_ENV !== \"production\" ? SnackbarContent.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * The action to display. It renders after the message, at the end of the snackbar.\n */\n action: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The message to display.\n */\n message: PropTypes.node,\n\n /**\n * The ARIA role attribute of the element.\n */\n role: PropTypes.string\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiSnackbarContent'\n})(SnackbarContent);","import _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _defineProperty from \"@babel/runtime/helpers/esm/defineProperty\";\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport { duration } from '../styles/transitions';\nimport ClickAwayListener from '../ClickAwayListener';\nimport useEventCallback from '../utils/useEventCallback';\nimport capitalize from '../utils/capitalize';\nimport createChainedFunction from '../utils/createChainedFunction';\nimport deprecatedPropType from '../utils/deprecatedPropType';\nimport Grow from '../Grow';\nimport SnackbarContent from '../SnackbarContent';\nexport var styles = function styles(theme) {\n var top1 = {\n top: 8\n };\n var bottom1 = {\n bottom: 8\n };\n var right = {\n justifyContent: 'flex-end'\n };\n var left = {\n justifyContent: 'flex-start'\n };\n var top3 = {\n top: 24\n };\n var bottom3 = {\n bottom: 24\n };\n var right3 = {\n right: 24\n };\n var left3 = {\n left: 24\n };\n var center = {\n left: '50%',\n right: 'auto',\n transform: 'translateX(-50%)'\n };\n return {\n /* Styles applied to the root element. */\n root: {\n zIndex: theme.zIndex.snackbar,\n position: 'fixed',\n display: 'flex',\n left: 8,\n right: 8,\n justifyContent: 'center',\n alignItems: 'center'\n },\n\n /* Styles applied to the root element if `anchorOrigin={{ 'top', 'center' }}`. */\n anchorOriginTopCenter: _extends({}, top1, _defineProperty({}, theme.breakpoints.up('sm'), _extends({}, top3, center))),\n\n /* Styles applied to the root element if `anchorOrigin={{ 'bottom', 'center' }}`. */\n anchorOriginBottomCenter: _extends({}, bottom1, _defineProperty({}, theme.breakpoints.up('sm'), _extends({}, bottom3, center))),\n\n /* Styles applied to the root element if `anchorOrigin={{ 'top', 'right' }}`. */\n anchorOriginTopRight: _extends({}, top1, right, _defineProperty({}, theme.breakpoints.up('sm'), _extends({\n left: 'auto'\n }, top3, right3))),\n\n /* Styles applied to the root element if `anchorOrigin={{ 'bottom', 'right' }}`. */\n anchorOriginBottomRight: _extends({}, bottom1, right, _defineProperty({}, theme.breakpoints.up('sm'), _extends({\n left: 'auto'\n }, bottom3, right3))),\n\n /* Styles applied to the root element if `anchorOrigin={{ 'top', 'left' }}`. */\n anchorOriginTopLeft: _extends({}, top1, left, _defineProperty({}, theme.breakpoints.up('sm'), _extends({\n right: 'auto'\n }, top3, left3))),\n\n /* Styles applied to the root element if `anchorOrigin={{ 'bottom', 'left' }}`. */\n anchorOriginBottomLeft: _extends({}, bottom1, left, _defineProperty({}, theme.breakpoints.up('sm'), _extends({\n right: 'auto'\n }, bottom3, left3)))\n };\n};\nvar Snackbar = /*#__PURE__*/React.forwardRef(function Snackbar(props, ref) {\n var action = props.action,\n _props$anchorOrigin = props.anchorOrigin;\n _props$anchorOrigin = _props$anchorOrigin === void 0 ? {\n vertical: 'bottom',\n horizontal: 'center'\n } : _props$anchorOrigin;\n\n var vertical = _props$anchorOrigin.vertical,\n horizontal = _props$anchorOrigin.horizontal,\n _props$autoHideDurati = props.autoHideDuration,\n autoHideDuration = _props$autoHideDurati === void 0 ? null : _props$autoHideDurati,\n children = props.children,\n classes = props.classes,\n className = props.className,\n ClickAwayListenerProps = props.ClickAwayListenerProps,\n ContentProps = props.ContentProps,\n _props$disableWindowB = props.disableWindowBlurListener,\n disableWindowBlurListener = _props$disableWindowB === void 0 ? false : _props$disableWindowB,\n message = props.message,\n onClose = props.onClose,\n onEnter = props.onEnter,\n onEntered = props.onEntered,\n onEntering = props.onEntering,\n onExit = props.onExit,\n onExited = props.onExited,\n onExiting = props.onExiting,\n onMouseEnter = props.onMouseEnter,\n onMouseLeave = props.onMouseLeave,\n open = props.open,\n resumeHideDuration = props.resumeHideDuration,\n _props$TransitionComp = props.TransitionComponent,\n TransitionComponent = _props$TransitionComp === void 0 ? Grow : _props$TransitionComp,\n _props$transitionDura = props.transitionDuration,\n transitionDuration = _props$transitionDura === void 0 ? {\n enter: duration.enteringScreen,\n exit: duration.leavingScreen\n } : _props$transitionDura,\n TransitionProps = props.TransitionProps,\n other = _objectWithoutProperties(props, [\"action\", \"anchorOrigin\", \"autoHideDuration\", \"children\", \"classes\", \"className\", \"ClickAwayListenerProps\", \"ContentProps\", \"disableWindowBlurListener\", \"message\", \"onClose\", \"onEnter\", \"onEntered\", \"onEntering\", \"onExit\", \"onExited\", \"onExiting\", \"onMouseEnter\", \"onMouseLeave\", \"open\", \"resumeHideDuration\", \"TransitionComponent\", \"transitionDuration\", \"TransitionProps\"]);\n\n var timerAutoHide = React.useRef();\n\n var _React$useState = React.useState(true),\n exited = _React$useState[0],\n setExited = _React$useState[1];\n\n var handleClose = useEventCallback(function () {\n if (onClose) {\n onClose.apply(void 0, arguments);\n }\n });\n var setAutoHideTimer = useEventCallback(function (autoHideDurationParam) {\n if (!onClose || autoHideDurationParam == null) {\n return;\n }\n\n clearTimeout(timerAutoHide.current);\n timerAutoHide.current = setTimeout(function () {\n handleClose(null, 'timeout');\n }, autoHideDurationParam);\n });\n React.useEffect(function () {\n if (open) {\n setAutoHideTimer(autoHideDuration);\n }\n\n return function () {\n clearTimeout(timerAutoHide.current);\n };\n }, [open, autoHideDuration, setAutoHideTimer]); // Pause the timer when the user is interacting with the Snackbar\n // or when the user hide the window.\n\n var handlePause = function handlePause() {\n clearTimeout(timerAutoHide.current);\n }; // Restart the timer when the user is no longer interacting with the Snackbar\n // or when the window is shown back.\n\n\n var handleResume = React.useCallback(function () {\n if (autoHideDuration != null) {\n setAutoHideTimer(resumeHideDuration != null ? resumeHideDuration : autoHideDuration * 0.5);\n }\n }, [autoHideDuration, resumeHideDuration, setAutoHideTimer]);\n\n var handleMouseEnter = function handleMouseEnter(event) {\n if (onMouseEnter) {\n onMouseEnter(event);\n }\n\n handlePause();\n };\n\n var handleMouseLeave = function handleMouseLeave(event) {\n if (onMouseLeave) {\n onMouseLeave(event);\n }\n\n handleResume();\n };\n\n var handleClickAway = function handleClickAway(event) {\n if (onClose) {\n onClose(event, 'clickaway');\n }\n };\n\n var handleExited = function handleExited() {\n setExited(true);\n };\n\n var handleEnter = function handleEnter() {\n setExited(false);\n };\n\n React.useEffect(function () {\n if (!disableWindowBlurListener && open) {\n window.addEventListener('focus', handleResume);\n window.addEventListener('blur', handlePause);\n return function () {\n window.removeEventListener('focus', handleResume);\n window.removeEventListener('blur', handlePause);\n };\n }\n\n return undefined;\n }, [disableWindowBlurListener, handleResume, open]); // So we only render active snackbars.\n\n if (!open && exited) {\n return null;\n }\n\n return /*#__PURE__*/React.createElement(ClickAwayListener, _extends({\n onClickAway: handleClickAway\n }, ClickAwayListenerProps), /*#__PURE__*/React.createElement(\"div\", _extends({\n className: clsx(classes.root, classes[\"anchorOrigin\".concat(capitalize(vertical)).concat(capitalize(horizontal))], className),\n onMouseEnter: handleMouseEnter,\n onMouseLeave: handleMouseLeave,\n ref: ref\n }, other), /*#__PURE__*/React.createElement(TransitionComponent, _extends({\n appear: true,\n in: open,\n onEnter: createChainedFunction(handleEnter, onEnter),\n onEntered: onEntered,\n onEntering: onEntering,\n onExit: onExit,\n onExited: createChainedFunction(handleExited, onExited),\n onExiting: onExiting,\n timeout: transitionDuration,\n direction: vertical === 'top' ? 'down' : 'up'\n }, TransitionProps), children || /*#__PURE__*/React.createElement(SnackbarContent, _extends({\n message: message,\n action: action\n }, ContentProps)))));\n});\nprocess.env.NODE_ENV !== \"production\" ? Snackbar.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * The action to display. It renders after the message, at the end of the snackbar.\n */\n action: PropTypes.node,\n\n /**\n * The anchor of the `Snackbar`.\n */\n anchorOrigin: PropTypes.shape({\n horizontal: PropTypes.oneOf(['center', 'left', 'right']).isRequired,\n vertical: PropTypes.oneOf(['bottom', 'top']).isRequired\n }),\n\n /**\n * The number of milliseconds to wait before automatically calling the\n * `onClose` function. `onClose` should then set the state of the `open`\n * prop to hide the Snackbar. This behavior is disabled by default with\n * the `null` value.\n */\n autoHideDuration: PropTypes.number,\n\n /**\n * Replace the `SnackbarContent` component.\n */\n children: PropTypes.element,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * Props applied to the `ClickAwayListener` element.\n */\n ClickAwayListenerProps: PropTypes.object,\n\n /**\n * Props applied to the [`SnackbarContent`](/api/snackbar-content/) element.\n */\n ContentProps: PropTypes.object,\n\n /**\n * If `true`, the `autoHideDuration` timer will expire even if the window is not focused.\n */\n disableWindowBlurListener: PropTypes.bool,\n\n /**\n * When displaying multiple consecutive Snackbars from a parent rendering a single\n * ` element when the parent context is a header\n * or otherwise a ` ` element.\n */\n\nvar TableCell = /*#__PURE__*/React.forwardRef(function TableCell(props, ref) {\n var _props$align = props.align,\n align = _props$align === void 0 ? 'inherit' : _props$align,\n classes = props.classes,\n className = props.className,\n component = props.component,\n paddingProp = props.padding,\n scopeProp = props.scope,\n sizeProp = props.size,\n sortDirection = props.sortDirection,\n variantProp = props.variant,\n other = _objectWithoutProperties(props, [\"align\", \"classes\", \"className\", \"component\", \"padding\", \"scope\", \"size\", \"sortDirection\", \"variant\"]);\n\n var table = React.useContext(TableContext);\n var tablelvl2 = React.useContext(Tablelvl2Context);\n var isHeadCell = tablelvl2 && tablelvl2.variant === 'head';\n var role;\n var Component;\n\n if (component) {\n Component = component;\n role = isHeadCell ? 'columnheader' : 'cell';\n } else {\n Component = isHeadCell ? 'th' : 'td';\n }\n\n var scope = scopeProp;\n\n if (!scope && isHeadCell) {\n scope = 'col';\n }\n\n var padding = paddingProp || (table && table.padding ? table.padding : 'normal');\n var size = sizeProp || (table && table.size ? table.size : 'medium');\n var variant = variantProp || tablelvl2 && tablelvl2.variant;\n var ariaSort = null;\n\n if (sortDirection) {\n ariaSort = sortDirection === 'asc' ? 'ascending' : 'descending';\n }\n\n return /*#__PURE__*/React.createElement(Component, _extends({\n ref: ref,\n className: clsx(classes.root, classes[variant], className, align !== 'inherit' && classes[\"align\".concat(capitalize(align))], padding !== 'normal' && classes[\"padding\".concat(capitalize(padding))], size !== 'medium' && classes[\"size\".concat(capitalize(size))], variant === 'head' && table && table.stickyHeader && classes.stickyHeader),\n \"aria-sort\": ariaSort,\n role: role,\n scope: scope\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableCell.propTypes = {\n /**\n * Set the text-align on the table cell content.\n *\n * Monetary or generally number fields **should be right aligned** as that allows\n * you to add them up quickly in your head without having to worry about decimals.\n */\n align: PropTypes.oneOf(['center', 'inherit', 'justify', 'left', 'right']),\n\n /**\n * The table cell contents.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * Sets the padding applied to the cell.\n * By default, the Table parent component set the value (`normal`).\n * `default` is deprecated, use `normal` instead.\n */\n padding: chainPropTypes(PropTypes.oneOf(['normal', 'checkbox', 'none', 'default']), function (props) {\n if (props.padding === 'default') {\n return new Error('Material-UI: padding=\"default\" was renamed to padding=\"normal\" for consistency.');\n }\n\n return null;\n }),\n\n /**\n * Set scope attribute.\n */\n scope: PropTypes.string,\n\n /**\n * Specify the size of the cell.\n * By default, the Table parent component set the value (`medium`).\n */\n size: PropTypes.oneOf(['medium', 'small']),\n\n /**\n * Set aria-sort direction.\n */\n sortDirection: PropTypes.oneOf(['asc', 'desc', false]),\n\n /**\n * Specify the cell type.\n * By default, the TableHead, TableBody or TableFooter parent component set the value.\n */\n variant: PropTypes.oneOf(['body', 'footer', 'head'])\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableCell'\n})(TableCell);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nexport var styles = {\n /* Styles applied to the root element. */\n root: {\n width: '100%',\n overflowX: 'auto'\n }\n};\nvar TableContainer = /*#__PURE__*/React.forwardRef(function TableContainer(props, ref) {\n var classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? 'div' : _props$component,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"component\"]);\n\n return /*#__PURE__*/React.createElement(Component, _extends({\n ref: ref,\n className: clsx(classes.root, className)\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableContainer.propTypes = {\n /**\n * The table itself, normally ``\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableContainer'\n})(TableContainer);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport Tablelvl2Context from '../Table/Tablelvl2Context';\nexport var styles = {\n /* Styles applied to the root element. */\n root: {\n display: 'table-footer-group'\n }\n};\nvar tablelvl2 = {\n variant: 'footer'\n};\nvar defaultComponent = 'tfoot';\nvar TableFooter = /*#__PURE__*/React.forwardRef(function TableFooter(props, ref) {\n var classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? defaultComponent : _props$component,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"component\"]);\n\n return /*#__PURE__*/React.createElement(Tablelvl2Context.Provider, {\n value: tablelvl2\n }, /*#__PURE__*/React.createElement(Component, _extends({\n className: clsx(classes.root, className),\n ref: ref,\n role: Component === defaultComponent ? null : 'rowgroup'\n }, other)));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableFooter.propTypes = {\n /**\n * The content of the component, normally `TableRow`.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableFooter'\n})(TableFooter);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport Tablelvl2Context from '../Table/Tablelvl2Context';\nexport var styles = {\n /* Styles applied to the root element. */\n root: {\n display: 'table-header-group'\n }\n};\nvar tablelvl2 = {\n variant: 'head'\n};\nvar defaultComponent = 'thead';\nvar TableHead = /*#__PURE__*/React.forwardRef(function TableHead(props, ref) {\n var classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? defaultComponent : _props$component,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"component\"]);\n\n return /*#__PURE__*/React.createElement(Tablelvl2Context.Provider, {\n value: tablelvl2\n }, /*#__PURE__*/React.createElement(Component, _extends({\n className: clsx(classes.root, className),\n ref: ref,\n role: Component === defaultComponent ? null : 'rowgroup'\n }, other)));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableHead.propTypes = {\n /**\n * The content of the component, normally `TableRow`.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableHead'\n})(TableHead);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _defineProperty from \"@babel/runtime/helpers/esm/defineProperty\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n position: 'relative',\n display: 'flex',\n alignItems: 'center'\n },\n\n /* Styles applied to the root element if `disableGutters={false}`. */\n gutters: _defineProperty({\n paddingLeft: theme.spacing(2),\n paddingRight: theme.spacing(2)\n }, theme.breakpoints.up('sm'), {\n paddingLeft: theme.spacing(3),\n paddingRight: theme.spacing(3)\n }),\n\n /* Styles applied to the root element if `variant=\"regular\"`. */\n regular: theme.mixins.toolbar,\n\n /* Styles applied to the root element if `variant=\"dense\"`. */\n dense: {\n minHeight: 48\n }\n };\n};\nvar Toolbar = /*#__PURE__*/React.forwardRef(function Toolbar(props, ref) {\n var classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? 'div' : _props$component,\n _props$disableGutters = props.disableGutters,\n disableGutters = _props$disableGutters === void 0 ? false : _props$disableGutters,\n _props$variant = props.variant,\n variant = _props$variant === void 0 ? 'regular' : _props$variant,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"component\", \"disableGutters\", \"variant\"]);\n\n return /*#__PURE__*/React.createElement(Component, _extends({\n className: clsx(classes.root, classes[variant], className, !disableGutters && classes.gutters),\n ref: ref\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? Toolbar.propTypes = {\n /**\n * Toolbar children, usually a mixture of `IconButton`, `Button` and `Typography`.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * If `true`, disables gutter padding.\n */\n disableGutters: PropTypes.bool,\n\n /**\n * The variant to use.\n */\n variant: PropTypes.oneOf(['regular', 'dense'])\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiToolbar'\n})(Toolbar);","import * as React from 'react';\nimport createSvgIcon from '../../utils/createSvgIcon';\n/**\n * @ignore - internal component.\n */\n\nexport default createSvgIcon( /*#__PURE__*/React.createElement(\"path\", {\n d: \"M15.41 16.09l-4.58-4.59 4.58-4.59L14 5.5l-6 6 6 6z\"\n}), 'KeyboardArrowLeft');","import * as React from 'react';\nimport createSvgIcon from '../../utils/createSvgIcon';\n/**\n * @ignore - internal component.\n */\n\nexport default createSvgIcon( /*#__PURE__*/React.createElement(\"path\", {\n d: \"M8.59 16.34l4.58-4.59-4.58-4.59L10 5.75l6 6-6 6z\"\n}), 'KeyboardArrowRight');","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport KeyboardArrowLeft from '../internal/svg-icons/KeyboardArrowLeft';\nimport KeyboardArrowRight from '../internal/svg-icons/KeyboardArrowRight';\nimport useTheme from '../styles/useTheme';\nimport IconButton from '../IconButton';\n/**\n * @ignore - internal component.\n */\n\nvar _ref = /*#__PURE__*/React.createElement(KeyboardArrowRight, null);\n\nvar _ref2 = /*#__PURE__*/React.createElement(KeyboardArrowLeft, null);\n\nvar _ref3 = /*#__PURE__*/React.createElement(KeyboardArrowLeft, null);\n\nvar _ref4 = /*#__PURE__*/React.createElement(KeyboardArrowRight, null);\n\nvar TablePaginationActions = /*#__PURE__*/React.forwardRef(function TablePaginationActions(props, ref) {\n var backIconButtonProps = props.backIconButtonProps,\n count = props.count,\n nextIconButtonProps = props.nextIconButtonProps,\n _props$onChangePage = props.onChangePage,\n onChangePage = _props$onChangePage === void 0 ? function () {} : _props$onChangePage,\n _props$onPageChange = props.onPageChange,\n onPageChange = _props$onPageChange === void 0 ? function () {} : _props$onPageChange,\n page = props.page,\n rowsPerPage = props.rowsPerPage,\n other = _objectWithoutProperties(props, [\"backIconButtonProps\", \"count\", \"nextIconButtonProps\", \"onChangePage\", \"onPageChange\", \"page\", \"rowsPerPage\"]);\n\n var theme = useTheme();\n\n var handleBackButtonClick = function handleBackButtonClick(event) {\n onChangePage(event, page - 1);\n onPageChange(event, page - 1);\n };\n\n var handleNextButtonClick = function handleNextButtonClick(event) {\n onChangePage(event, page + 1);\n onPageChange(event, page + 1);\n };\n\n return /*#__PURE__*/React.createElement(\"div\", _extends({\n ref: ref\n }, other), /*#__PURE__*/React.createElement(IconButton, _extends({\n onClick: handleBackButtonClick,\n disabled: page === 0,\n color: \"inherit\"\n }, backIconButtonProps), theme.direction === 'rtl' ? _ref : _ref2), /*#__PURE__*/React.createElement(IconButton, _extends({\n onClick: handleNextButtonClick,\n disabled: count !== -1 ? page >= Math.ceil(count / rowsPerPage) - 1 : false,\n color: \"inherit\"\n }, nextIconButtonProps), theme.direction === 'rtl' ? _ref3 : _ref4));\n});\nprocess.env.NODE_ENV !== \"production\" ? TablePaginationActions.propTypes = {\n /**\n * Props applied to the back arrow [`IconButton`](/api/icon-button/) element.\n */\n backIconButtonProps: PropTypes.object,\n\n /**\n * The total number of rows.\n */\n count: PropTypes.number.isRequired,\n\n /**\n * Props applied to the next arrow [`IconButton`](/api/icon-button/) element.\n */\n nextIconButtonProps: PropTypes.object,\n\n /**\n * Callback fired when the page is changed.\n *\n * @param {object} event The event source of the callback.\n * @param {number} page The page selected.\n */\n onChangePage: PropTypes.func,\n\n /**\n * Callback fired when the page is changed.\n *\n * @param {object} event The event source of the callback.\n * @param {number} page The page selected.\n */\n onPageChange: PropTypes.func,\n\n /**\n * The zero-based index of the current page.\n */\n page: PropTypes.number.isRequired,\n\n /**\n * The number of rows per page.\n */\n rowsPerPage: PropTypes.number.isRequired\n} : void 0;\nexport default TablePaginationActions;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport { chainPropTypes } from '@material-ui/utils';\nimport clsx from 'clsx';\nimport deprecatedPropType from '../utils/deprecatedPropType';\nimport withStyles from '../styles/withStyles';\nimport InputBase from '../InputBase';\nimport MenuItem from '../MenuItem';\nimport Select from '../Select';\nimport TableCell from '../TableCell';\nimport Toolbar from '../Toolbar';\nimport Typography from '../Typography';\nimport TablePaginationActions from './TablePaginationActions';\nimport useId from '../utils/unstable_useId';\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n color: theme.palette.text.primary,\n fontSize: theme.typography.pxToRem(14),\n overflow: 'auto',\n // Increase the specificity to override TableCell.\n '&:last-child': {\n padding: 0\n }\n },\n\n /* Styles applied to the Toolbar component. */\n toolbar: {\n minHeight: 52,\n paddingRight: 2\n },\n\n /* Styles applied to the spacer element. */\n spacer: {\n flex: '1 1 100%'\n },\n\n /* Styles applied to the caption Typography components if `variant=\"caption\"`. */\n caption: {\n flexShrink: 0\n },\n // TODO v5: `.selectRoot` should be merged with `.input`\n\n /* Styles applied to the Select component root element. */\n selectRoot: {\n marginRight: 32,\n marginLeft: 8\n },\n\n /* Styles applied to the Select component `select` class. */\n select: {\n paddingLeft: 8,\n paddingRight: 24,\n textAlign: 'right',\n textAlignLast: 'right' // Align on Chrome.\n\n },\n // TODO v5: remove\n\n /* Styles applied to the Select component `icon` class. */\n selectIcon: {},\n\n /* Styles applied to the `InputBase` component. */\n input: {\n color: 'inherit',\n fontSize: 'inherit',\n flexShrink: 0\n },\n\n /* Styles applied to the MenuItem component. */\n menuItem: {},\n\n /* Styles applied to the internal `TablePaginationActions` component. */\n actions: {\n flexShrink: 0,\n marginLeft: 20\n }\n };\n};\n\nvar defaultLabelDisplayedRows = function defaultLabelDisplayedRows(_ref) {\n var from = _ref.from,\n to = _ref.to,\n count = _ref.count;\n return \"\".concat(from, \"-\").concat(to, \" of \").concat(count !== -1 ? count : \"more than \".concat(to));\n};\n\nvar defaultRowsPerPageOptions = [10, 25, 50, 100];\n/**\n * A `TableCell` based component for placing inside `TableFooter` for pagination.\n */\n\nvar TablePagination = /*#__PURE__*/React.forwardRef(function TablePagination(props, ref) {\n var _props$ActionsCompone = props.ActionsComponent,\n ActionsComponent = _props$ActionsCompone === void 0 ? TablePaginationActions : _props$ActionsCompone,\n backIconButtonProps = props.backIconButtonProps,\n _props$backIconButton = props.backIconButtonText,\n backIconButtonText = _props$backIconButton === void 0 ? 'Previous page' : _props$backIconButton,\n classes = props.classes,\n className = props.className,\n colSpanProp = props.colSpan,\n _props$component = props.component,\n Component = _props$component === void 0 ? TableCell : _props$component,\n count = props.count,\n _props$labelDisplayed = props.labelDisplayedRows,\n labelDisplayedRows = _props$labelDisplayed === void 0 ? defaultLabelDisplayedRows : _props$labelDisplayed,\n _props$labelRowsPerPa = props.labelRowsPerPage,\n labelRowsPerPage = _props$labelRowsPerPa === void 0 ? 'Rows per page:' : _props$labelRowsPerPa,\n nextIconButtonProps = props.nextIconButtonProps,\n _props$nextIconButton = props.nextIconButtonText,\n nextIconButtonText = _props$nextIconButton === void 0 ? 'Next page' : _props$nextIconButton,\n onChangePage = props.onChangePage,\n onPageChange = props.onPageChange,\n onChangeRowsPerPageProp = props.onChangeRowsPerPage,\n onRowsPerPageChangeProp = props.onRowsPerPageChange,\n page = props.page,\n rowsPerPage = props.rowsPerPage,\n _props$rowsPerPageOpt = props.rowsPerPageOptions,\n rowsPerPageOptions = _props$rowsPerPageOpt === void 0 ? defaultRowsPerPageOptions : _props$rowsPerPageOpt,\n _props$SelectProps = props.SelectProps,\n SelectProps = _props$SelectProps === void 0 ? {} : _props$SelectProps,\n other = _objectWithoutProperties(props, [\"ActionsComponent\", \"backIconButtonProps\", \"backIconButtonText\", \"classes\", \"className\", \"colSpan\", \"component\", \"count\", \"labelDisplayedRows\", \"labelRowsPerPage\", \"nextIconButtonProps\", \"nextIconButtonText\", \"onChangePage\", \"onPageChange\", \"onChangeRowsPerPage\", \"onRowsPerPageChange\", \"page\", \"rowsPerPage\", \"rowsPerPageOptions\", \"SelectProps\"]);\n\n var onChangeRowsPerPage = onChangeRowsPerPageProp || onRowsPerPageChangeProp;\n var colSpan;\n\n if (Component === TableCell || Component === 'td') {\n colSpan = colSpanProp || 1000; // col-span over everything\n }\n\n var selectId = useId();\n var labelId = useId();\n var MenuItemComponent = SelectProps.native ? 'option' : MenuItem;\n return /*#__PURE__*/React.createElement(Component, _extends({\n className: clsx(classes.root, className),\n colSpan: colSpan,\n ref: ref\n }, other), /*#__PURE__*/React.createElement(Toolbar, {\n className: classes.toolbar\n }, /*#__PURE__*/React.createElement(\"div\", {\n className: classes.spacer\n }), rowsPerPageOptions.length > 1 && /*#__PURE__*/React.createElement(Typography, {\n color: \"inherit\",\n variant: \"body2\",\n className: classes.caption,\n id: labelId\n }, labelRowsPerPage), rowsPerPageOptions.length > 1 && /*#__PURE__*/React.createElement(Select, _extends({\n classes: {\n select: classes.select,\n icon: classes.selectIcon\n },\n input: /*#__PURE__*/React.createElement(InputBase, {\n className: clsx(classes.input, classes.selectRoot)\n }),\n value: rowsPerPage,\n onChange: onChangeRowsPerPage,\n id: selectId,\n labelId: labelId\n }, SelectProps), rowsPerPageOptions.map(function (rowsPerPageOption) {\n return /*#__PURE__*/React.createElement(MenuItemComponent, {\n className: classes.menuItem,\n key: rowsPerPageOption.value ? rowsPerPageOption.value : rowsPerPageOption,\n value: rowsPerPageOption.value ? rowsPerPageOption.value : rowsPerPageOption\n }, rowsPerPageOption.label ? rowsPerPageOption.label : rowsPerPageOption);\n })), /*#__PURE__*/React.createElement(Typography, {\n color: \"inherit\",\n variant: \"body2\",\n className: classes.caption\n }, labelDisplayedRows({\n from: count === 0 ? 0 : page * rowsPerPage + 1,\n to: count !== -1 ? Math.min(count, (page + 1) * rowsPerPage) : (page + 1) * rowsPerPage,\n count: count === -1 ? -1 : count,\n page: page\n })), /*#__PURE__*/React.createElement(ActionsComponent, {\n className: classes.actions,\n backIconButtonProps: _extends({\n title: backIconButtonText,\n 'aria-label': backIconButtonText\n }, backIconButtonProps),\n count: count,\n nextIconButtonProps: _extends({\n title: nextIconButtonText,\n 'aria-label': nextIconButtonText\n }, nextIconButtonProps),\n onChangePage: onChangePage,\n onPageChange: onPageChange,\n page: page,\n rowsPerPage: rowsPerPage\n })));\n});\nprocess.env.NODE_ENV !== \"production\" ? TablePagination.propTypes = {\n /**\n * The component used for displaying the actions.\n * Either a string to use a HTML element or a component.\n */\n ActionsComponent: PropTypes.elementType,\n\n /**\n * Props applied to the back arrow [`IconButton`](/api/icon-button/) component.\n */\n backIconButtonProps: PropTypes.object,\n\n /**\n * Text label for the back arrow icon button.\n *\n * For localization purposes, you can use the provided [translations](/guides/localization/).\n */\n backIconButtonText: PropTypes.string,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * @ignore\n */\n colSpan: PropTypes.number,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * The total number of rows.\n *\n * To enable server side pagination for an unknown number of items, provide -1.\n */\n count: PropTypes.number.isRequired,\n\n /**\n * Customize the displayed rows label. Invoked with a `{ from, to, count, page }`\n * object.\n *\n * For localization purposes, you can use the provided [translations](/guides/localization/).\n */\n labelDisplayedRows: PropTypes.func,\n\n /**\n * Customize the rows per page label.\n *\n * For localization purposes, you can use the provided [translations](/guides/localization/).\n */\n labelRowsPerPage: PropTypes.node,\n\n /**\n * Props applied to the next arrow [`IconButton`](/api/icon-button/) element.\n */\n nextIconButtonProps: PropTypes.object,\n\n /**\n * Text label for the next arrow icon button.\n *\n * For localization purposes, you can use the provided [translations](/guides/localization/).\n */\n nextIconButtonText: PropTypes.string,\n\n /**\n * Callback fired when the page is changed.\n *\n * @param {object} event The event source of the callback.\n * @param {number} page The page selected.\n * @deprecated Use the onPageChange prop instead.\n */\n onChangePage: deprecatedPropType(PropTypes.func, 'Use the `onPageChange` prop instead.'),\n\n /**\n * Callback fired when the number of rows per page is changed.\n *\n * @param {object} event The event source of the callback.\n * @deprecated Use the onRowsPerPageChange prop instead.\n */\n onChangeRowsPerPage: deprecatedPropType(PropTypes.func, 'Use the `onRowsPerPageChange` prop instead.'),\n\n /**\n * Callback fired when the page is changed.\n *\n * @param {object} event The event source of the callback.\n * @param {number} page The page selected.\n */\n onPageChange: PropTypes.func.isRequired,\n\n /**\n * Callback fired when the number of rows per page is changed.\n *\n * @param {object} event The event source of the callback.\n */\n onRowsPerPageChange: PropTypes.func,\n\n /**\n * The zero-based index of the current page.\n */\n page: chainPropTypes(PropTypes.number.isRequired, function (props) {\n var count = props.count,\n page = props.page,\n rowsPerPage = props.rowsPerPage;\n\n if (count === -1) {\n return null;\n }\n\n var newLastPage = Math.max(0, Math.ceil(count / rowsPerPage) - 1);\n\n if (page < 0 || page > newLastPage) {\n return new Error('Material-UI: The page prop of a TablePagination is out of range ' + \"(0 to \".concat(newLastPage, \", but page is \").concat(page, \").\"));\n }\n\n return null;\n }),\n\n /**\n * The number of rows per page.\n */\n rowsPerPage: PropTypes.number.isRequired,\n\n /**\n * Customizes the options of the rows per page select field. If less than two options are\n * available, no select field will be displayed.\n */\n rowsPerPageOptions: PropTypes.array,\n\n /**\n * Props applied to the rows per page [`Select`](/api/select/) element.\n */\n SelectProps: PropTypes.object\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTablePagination'\n})(TablePagination);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport Tablelvl2Context from '../Table/Tablelvl2Context';\nimport { alpha } from '../styles/colorManipulator';\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n color: 'inherit',\n display: 'table-row',\n verticalAlign: 'middle',\n // We disable the focus ring for mouse, touch and keyboard users.\n outline: 0,\n '&$hover:hover': {\n backgroundColor: theme.palette.action.hover\n },\n '&$selected, &$selected:hover': {\n backgroundColor: alpha(theme.palette.secondary.main, theme.palette.action.selectedOpacity)\n }\n },\n\n /* Pseudo-class applied to the root element if `selected={true}`. */\n selected: {},\n\n /* Pseudo-class applied to the root element if `hover={true}`. */\n hover: {},\n\n /* Styles applied to the root element if table variant=\"head\". */\n head: {},\n\n /* Styles applied to the root element if table variant=\"footer\". */\n footer: {}\n };\n};\nvar defaultComponent = 'tr';\n/**\n * Will automatically set dynamic row height\n * based on the material table element parent (head, body, etc).\n */\n\nvar TableRow = /*#__PURE__*/React.forwardRef(function TableRow(props, ref) {\n var classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? defaultComponent : _props$component,\n _props$hover = props.hover,\n hover = _props$hover === void 0 ? false : _props$hover,\n _props$selected = props.selected,\n selected = _props$selected === void 0 ? false : _props$selected,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"component\", \"hover\", \"selected\"]);\n\n var tablelvl2 = React.useContext(Tablelvl2Context);\n return /*#__PURE__*/React.createElement(Component, _extends({\n ref: ref,\n className: clsx(classes.root, className, tablelvl2 && {\n 'head': classes.head,\n 'footer': classes.footer\n }[tablelvl2.variant], hover && classes.hover, selected && classes.selected),\n role: Component === defaultComponent ? null : 'row'\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableRow.propTypes = {\n /**\n * Should be valid children such as `TableCell`.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * If `true`, the table row will shade on hover.\n */\n hover: PropTypes.bool,\n\n /**\n * If `true`, the table row will have the selected shading.\n */\n selected: PropTypes.bool\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableRow'\n})(TableRow);","import * as React from 'react';\nimport createSvgIcon from '../../utils/createSvgIcon';\n/**\n * @ignore - internal component.\n */\n\nexport default createSvgIcon( /*#__PURE__*/React.createElement(\"path\", {\n d: \"M20 12l-1.41-1.41L13 16.17V4h-2v12.17l-5.58-5.59L4 12l8 8 8-8z\"\n}), 'ArrowDownward');","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport ArrowDownwardIcon from '../internal/svg-icons/ArrowDownward';\nimport withStyles from '../styles/withStyles';\nimport ButtonBase from '../ButtonBase';\nimport capitalize from '../utils/capitalize';\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n cursor: 'pointer',\n display: 'inline-flex',\n justifyContent: 'flex-start',\n flexDirection: 'inherit',\n alignItems: 'center',\n '&:focus': {\n color: theme.palette.text.secondary\n },\n '&:hover': {\n color: theme.palette.text.secondary,\n '& $icon': {\n opacity: 0.5\n }\n },\n '&$active': {\n color: theme.palette.text.primary,\n // && instead of & is a workaround for https://github.com/cssinjs/jss/issues/1045\n '&& $icon': {\n opacity: 1,\n color: theme.palette.text.secondary\n }\n }\n },\n\n /* Pseudo-class applied to the root element if `active={true}`. */\n active: {},\n\n /* Styles applied to the icon component. */\n icon: {\n fontSize: 18,\n marginRight: 4,\n marginLeft: 4,\n opacity: 0,\n transition: theme.transitions.create(['opacity', 'transform'], {\n duration: theme.transitions.duration.shorter\n }),\n userSelect: 'none'\n },\n\n /* Styles applied to the icon component if `direction=\"desc\"`. */\n iconDirectionDesc: {\n transform: 'rotate(0deg)'\n },\n\n /* Styles applied to the icon component if `direction=\"asc\"`. */\n iconDirectionAsc: {\n transform: 'rotate(180deg)'\n }\n };\n};\n/**\n * A button based label for placing inside `TableCell` for column sorting.\n */\n\nvar TableSortLabel = /*#__PURE__*/React.forwardRef(function TableSortLabel(props, ref) {\n var _props$active = props.active,\n active = _props$active === void 0 ? false : _props$active,\n children = props.children,\n classes = props.classes,\n className = props.className,\n _props$direction = props.direction,\n direction = _props$direction === void 0 ? 'asc' : _props$direction,\n _props$hideSortIcon = props.hideSortIcon,\n hideSortIcon = _props$hideSortIcon === void 0 ? false : _props$hideSortIcon,\n _props$IconComponent = props.IconComponent,\n IconComponent = _props$IconComponent === void 0 ? ArrowDownwardIcon : _props$IconComponent,\n other = _objectWithoutProperties(props, [\"active\", \"children\", \"classes\", \"className\", \"direction\", \"hideSortIcon\", \"IconComponent\"]);\n\n return /*#__PURE__*/React.createElement(ButtonBase, _extends({\n className: clsx(classes.root, className, active && classes.active),\n component: \"span\",\n disableRipple: true,\n ref: ref\n }, other), children, hideSortIcon && !active ? null : /*#__PURE__*/React.createElement(IconComponent, {\n className: clsx(classes.icon, classes[\"iconDirection\".concat(capitalize(direction))])\n }));\n});\nprocess.env.NODE_ENV !== \"production\" ? TableSortLabel.propTypes = {\n /**\n * If `true`, the label will have the active styling (should be true for the sorted column).\n */\n active: PropTypes.bool,\n\n /**\n * Label contents, the arrow will be appended automatically.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The current sort direction.\n */\n direction: PropTypes.oneOf(['asc', 'desc']),\n\n /**\n * Hide sort icon when active is false.\n */\n hideSortIcon: PropTypes.bool,\n\n /**\n * Sort icon to use.\n */\n IconComponent: PropTypes.elementType\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTableSortLabel'\n})(TableSortLabel);","function easeInOutSin(time) {\n return (1 + Math.sin(Math.PI * time - Math.PI / 2)) / 2;\n}\n\nexport default function animate(property, element, to) {\n var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};\n var cb = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : function () {};\n var _options$ease = options.ease,\n ease = _options$ease === void 0 ? easeInOutSin : _options$ease,\n _options$duration = options.duration,\n duration = _options$duration === void 0 ? 300 : _options$duration;\n var start = null;\n var from = element[property];\n var cancelled = false;\n\n var cancel = function cancel() {\n cancelled = true;\n };\n\n var step = function step(timestamp) {\n if (cancelled) {\n cb(new Error('Animation cancelled'));\n return;\n }\n\n if (start === null) {\n start = timestamp;\n }\n\n var time = Math.min(1, (timestamp - start) / duration);\n element[property] = ease(time) * (to - from) + from;\n\n if (time >= 1) {\n requestAnimationFrame(function () {\n cb(null);\n });\n return;\n }\n\n requestAnimationFrame(step);\n };\n\n if (from === to) {\n cb(new Error('Element already at target position'));\n return cancel;\n }\n\n requestAnimationFrame(step);\n return cancel;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport debounce from '../utils/debounce';\nvar styles = {\n width: 99,\n height: 99,\n position: 'absolute',\n top: -9999,\n overflow: 'scroll'\n};\n/**\n * @ignore - internal component.\n * The component originates from https://github.com/STORIS/react-scrollbar-size.\n * It has been moved into the core in order to minimize the bundle size.\n */\n\nexport default function ScrollbarSize(props) {\n var onChange = props.onChange,\n other = _objectWithoutProperties(props, [\"onChange\"]);\n\n var scrollbarHeight = React.useRef();\n var nodeRef = React.useRef(null);\n\n var setMeasurements = function setMeasurements() {\n scrollbarHeight.current = nodeRef.current.offsetHeight - nodeRef.current.clientHeight;\n };\n\n React.useEffect(function () {\n var handleResize = debounce(function () {\n var prevHeight = scrollbarHeight.current;\n setMeasurements();\n\n if (prevHeight !== scrollbarHeight.current) {\n onChange(scrollbarHeight.current);\n }\n });\n window.addEventListener('resize', handleResize);\n return function () {\n handleResize.clear();\n window.removeEventListener('resize', handleResize);\n };\n }, [onChange]);\n React.useEffect(function () {\n setMeasurements();\n onChange(scrollbarHeight.current);\n }, [onChange]);\n return /*#__PURE__*/React.createElement(\"div\", _extends({\n style: styles,\n ref: nodeRef\n }, other));\n}\nprocess.env.NODE_ENV !== \"production\" ? ScrollbarSize.propTypes = {\n onChange: PropTypes.func.isRequired\n} : void 0;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport withStyles from '../styles/withStyles';\nimport capitalize from '../utils/capitalize';\nexport var styles = function styles(theme) {\n return {\n root: {\n position: 'absolute',\n height: 2,\n bottom: 0,\n width: '100%',\n transition: theme.transitions.create()\n },\n colorPrimary: {\n backgroundColor: theme.palette.primary.main\n },\n colorSecondary: {\n backgroundColor: theme.palette.secondary.main\n },\n vertical: {\n height: '100%',\n width: 2,\n right: 0\n }\n };\n};\n/**\n * @ignore - internal component.\n */\n\nvar TabIndicator = /*#__PURE__*/React.forwardRef(function TabIndicator(props, ref) {\n var classes = props.classes,\n className = props.className,\n color = props.color,\n orientation = props.orientation,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"color\", \"orientation\"]);\n\n return /*#__PURE__*/React.createElement(\"span\", _extends({\n className: clsx(classes.root, classes[\"color\".concat(capitalize(color))], className, orientation === 'vertical' && classes.vertical),\n ref: ref\n }, other));\n});\nprocess.env.NODE_ENV !== \"production\" ? TabIndicator.propTypes = {\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object.isRequired,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * @ignore\n * The color of the tab indicator.\n */\n color: PropTypes.oneOf(['primary', 'secondary']).isRequired,\n\n /**\n * The tabs orientation (layout flow direction).\n */\n orientation: PropTypes.oneOf(['horizontal', 'vertical']).isRequired\n} : void 0;\nexport default withStyles(styles, {\n name: 'PrivateTabIndicator'\n})(TabIndicator);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\n\n/* eslint-disable jsx-a11y/aria-role */\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport KeyboardArrowLeft from '../internal/svg-icons/KeyboardArrowLeft';\nimport KeyboardArrowRight from '../internal/svg-icons/KeyboardArrowRight';\nimport withStyles from '../styles/withStyles';\nimport ButtonBase from '../ButtonBase';\nexport var styles = {\n /* Styles applied to the root element. */\n root: {\n width: 40,\n flexShrink: 0,\n opacity: 0.8,\n '&$disabled': {\n opacity: 0\n }\n },\n\n /* Styles applied to the root element if `orientation=\"vertical\"`. */\n vertical: {\n width: '100%',\n height: 40,\n '& svg': {\n transform: 'rotate(90deg)'\n }\n },\n\n /* Pseudo-class applied to the root element if `disabled={true}`. */\n disabled: {}\n};\n\nvar _ref = /*#__PURE__*/React.createElement(KeyboardArrowLeft, {\n fontSize: \"small\"\n});\n\nvar _ref2 = /*#__PURE__*/React.createElement(KeyboardArrowRight, {\n fontSize: \"small\"\n});\n\nvar TabScrollButton = /*#__PURE__*/React.forwardRef(function TabScrollButton(props, ref) {\n var classes = props.classes,\n classNameProp = props.className,\n direction = props.direction,\n orientation = props.orientation,\n disabled = props.disabled,\n other = _objectWithoutProperties(props, [\"classes\", \"className\", \"direction\", \"orientation\", \"disabled\"]);\n\n return /*#__PURE__*/React.createElement(ButtonBase, _extends({\n component: \"div\",\n className: clsx(classes.root, classNameProp, disabled && classes.disabled, orientation === 'vertical' && classes.vertical),\n ref: ref,\n role: null,\n tabIndex: null\n }, other), direction === 'left' ? _ref : _ref2);\n});\nprocess.env.NODE_ENV !== \"production\" ? TabScrollButton.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * The content of the component.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * Which direction should the button indicate?\n */\n direction: PropTypes.oneOf(['left', 'right']).isRequired,\n\n /**\n * If `true`, the element will be disabled.\n */\n disabled: PropTypes.bool,\n\n /**\n * The tabs orientation (layout flow direction).\n */\n orientation: PropTypes.oneOf(['horizontal', 'vertical']).isRequired\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTabScrollButton'\n})(TabScrollButton);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _defineProperty from \"@babel/runtime/helpers/esm/defineProperty\";\nimport * as React from 'react';\nimport { isFragment } from 'react-is';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport { refType } from '@material-ui/utils';\nimport debounce from '../utils/debounce';\nimport ownerWindow from '../utils/ownerWindow';\nimport { getNormalizedScrollLeft, detectScrollType } from '../utils/scrollLeft';\nimport animate from '../internal/animate';\nimport ScrollbarSize from './ScrollbarSize';\nimport withStyles from '../styles/withStyles';\nimport TabIndicator from './TabIndicator';\nimport TabScrollButton from '../TabScrollButton';\nimport useEventCallback from '../utils/useEventCallback';\nimport useTheme from '../styles/useTheme';\nexport var styles = function styles(theme) {\n return {\n /* Styles applied to the root element. */\n root: {\n overflow: 'hidden',\n minHeight: 48,\n WebkitOverflowScrolling: 'touch',\n // Add iOS momentum scrolling.\n display: 'flex'\n },\n\n /* Styles applied to the root element if `orientation=\"vertical\"`. */\n vertical: {\n flexDirection: 'column'\n },\n\n /* Styles applied to the flex container element. */\n flexContainer: {\n display: 'flex'\n },\n\n /* Styles applied to the flex container element if `orientation=\"vertical\"`. */\n flexContainerVertical: {\n flexDirection: 'column'\n },\n\n /* Styles applied to the flex container element if `centered={true}` & `!variant=\"scrollable\"`. */\n centered: {\n justifyContent: 'center'\n },\n\n /* Styles applied to the tablist element. */\n scroller: {\n position: 'relative',\n display: 'inline-block',\n flex: '1 1 auto',\n whiteSpace: 'nowrap'\n },\n\n /* Styles applied to the tablist element if `!variant=\"scrollable\"`\b\b\b. */\n fixed: {\n overflowX: 'hidden',\n width: '100%'\n },\n\n /* Styles applied to the tablist element if `variant=\"scrollable\"`. */\n scrollable: {\n overflowX: 'scroll',\n // Hide dimensionless scrollbar on MacOS\n scrollbarWidth: 'none',\n // Firefox\n '&::-webkit-scrollbar': {\n display: 'none' // Safari + Chrome\n\n }\n },\n\n /* Styles applied to the `ScrollButtonComponent` component. */\n scrollButtons: {},\n\n /* Styles applied to the `ScrollButtonComponent` component if `scrollButtons=\"auto\"` or scrollButtons=\"desktop\"`. */\n scrollButtonsDesktop: _defineProperty({}, theme.breakpoints.down('xs'), {\n display: 'none'\n }),\n\n /* Styles applied to the `TabIndicator` component. */\n indicator: {}\n };\n};\nvar Tabs = /*#__PURE__*/React.forwardRef(function Tabs(props, ref) {\n var ariaLabel = props['aria-label'],\n ariaLabelledBy = props['aria-labelledby'],\n action = props.action,\n _props$centered = props.centered,\n centered = _props$centered === void 0 ? false : _props$centered,\n childrenProp = props.children,\n classes = props.classes,\n className = props.className,\n _props$component = props.component,\n Component = _props$component === void 0 ? 'div' : _props$component,\n _props$indicatorColor = props.indicatorColor,\n indicatorColor = _props$indicatorColor === void 0 ? 'secondary' : _props$indicatorColor,\n onChange = props.onChange,\n _props$orientation = props.orientation,\n orientation = _props$orientation === void 0 ? 'horizontal' : _props$orientation,\n _props$ScrollButtonCo = props.ScrollButtonComponent,\n ScrollButtonComponent = _props$ScrollButtonCo === void 0 ? TabScrollButton : _props$ScrollButtonCo,\n _props$scrollButtons = props.scrollButtons,\n scrollButtons = _props$scrollButtons === void 0 ? 'auto' : _props$scrollButtons,\n selectionFollowsFocus = props.selectionFollowsFocus,\n _props$TabIndicatorPr = props.TabIndicatorProps,\n TabIndicatorProps = _props$TabIndicatorPr === void 0 ? {} : _props$TabIndicatorPr,\n TabScrollButtonProps = props.TabScrollButtonProps,\n _props$textColor = props.textColor,\n textColor = _props$textColor === void 0 ? 'inherit' : _props$textColor,\n value = props.value,\n _props$variant = props.variant,\n variant = _props$variant === void 0 ? 'standard' : _props$variant,\n other = _objectWithoutProperties(props, [\"aria-label\", \"aria-labelledby\", \"action\", \"centered\", \"children\", \"classes\", \"className\", \"component\", \"indicatorColor\", \"onChange\", \"orientation\", \"ScrollButtonComponent\", \"scrollButtons\", \"selectionFollowsFocus\", \"TabIndicatorProps\", \"TabScrollButtonProps\", \"textColor\", \"value\", \"variant\"]);\n\n var theme = useTheme();\n var scrollable = variant === 'scrollable';\n var isRtl = theme.direction === 'rtl';\n var vertical = orientation === 'vertical';\n var scrollStart = vertical ? 'scrollTop' : 'scrollLeft';\n var start = vertical ? 'top' : 'left';\n var end = vertical ? 'bottom' : 'right';\n var clientSize = vertical ? 'clientHeight' : 'clientWidth';\n var size = vertical ? 'height' : 'width';\n\n if (process.env.NODE_ENV !== 'production') {\n if (centered && scrollable) {\n console.error('Material-UI: You can not use the `centered={true}` and `variant=\"scrollable\"` properties ' + 'at the same time on a `Tabs` component.');\n }\n }\n\n var _React$useState = React.useState(false),\n mounted = _React$useState[0],\n setMounted = _React$useState[1];\n\n var _React$useState2 = React.useState({}),\n indicatorStyle = _React$useState2[0],\n setIndicatorStyle = _React$useState2[1];\n\n var _React$useState3 = React.useState({\n start: false,\n end: false\n }),\n displayScroll = _React$useState3[0],\n setDisplayScroll = _React$useState3[1];\n\n var _React$useState4 = React.useState({\n overflow: 'hidden',\n marginBottom: null\n }),\n scrollerStyle = _React$useState4[0],\n setScrollerStyle = _React$useState4[1];\n\n var valueToIndex = new Map();\n var tabsRef = React.useRef(null);\n var tabListRef = React.useRef(null);\n\n var getTabsMeta = function getTabsMeta() {\n var tabsNode = tabsRef.current;\n var tabsMeta;\n\n if (tabsNode) {\n var rect = tabsNode.getBoundingClientRect(); // create a new object with ClientRect class props + scrollLeft\n\n tabsMeta = {\n clientWidth: tabsNode.clientWidth,\n scrollLeft: tabsNode.scrollLeft,\n scrollTop: tabsNode.scrollTop,\n scrollLeftNormalized: getNormalizedScrollLeft(tabsNode, theme.direction),\n scrollWidth: tabsNode.scrollWidth,\n top: rect.top,\n bottom: rect.bottom,\n left: rect.left,\n right: rect.right\n };\n }\n\n var tabMeta;\n\n if (tabsNode && value !== false) {\n var _children = tabListRef.current.children;\n\n if (_children.length > 0) {\n var tab = _children[valueToIndex.get(value)];\n\n if (process.env.NODE_ENV !== 'production') {\n if (!tab) {\n console.error([\"Material-UI: The value provided to the Tabs component is invalid.\", \"None of the Tabs' children match with `\".concat(value, \"`.\"), valueToIndex.keys ? \"You can provide one of the following values: \".concat(Array.from(valueToIndex.keys()).join(', '), \".\") : null].join('\\n'));\n }\n }\n\n tabMeta = tab ? tab.getBoundingClientRect() : null;\n }\n }\n\n return {\n tabsMeta: tabsMeta,\n tabMeta: tabMeta\n };\n };\n\n var updateIndicatorState = useEventCallback(function () {\n var _newIndicatorStyle;\n\n var _getTabsMeta = getTabsMeta(),\n tabsMeta = _getTabsMeta.tabsMeta,\n tabMeta = _getTabsMeta.tabMeta;\n\n var startValue = 0;\n\n if (tabMeta && tabsMeta) {\n if (vertical) {\n startValue = tabMeta.top - tabsMeta.top + tabsMeta.scrollTop;\n } else {\n var correction = isRtl ? tabsMeta.scrollLeftNormalized + tabsMeta.clientWidth - tabsMeta.scrollWidth : tabsMeta.scrollLeft;\n startValue = tabMeta.left - tabsMeta.left + correction;\n }\n }\n\n var newIndicatorStyle = (_newIndicatorStyle = {}, _defineProperty(_newIndicatorStyle, start, startValue), _defineProperty(_newIndicatorStyle, size, tabMeta ? tabMeta[size] : 0), _newIndicatorStyle);\n\n if (isNaN(indicatorStyle[start]) || isNaN(indicatorStyle[size])) {\n setIndicatorStyle(newIndicatorStyle);\n } else {\n var dStart = Math.abs(indicatorStyle[start] - newIndicatorStyle[start]);\n var dSize = Math.abs(indicatorStyle[size] - newIndicatorStyle[size]);\n\n if (dStart >= 1 || dSize >= 1) {\n setIndicatorStyle(newIndicatorStyle);\n }\n }\n });\n\n var scroll = function scroll(scrollValue) {\n animate(scrollStart, tabsRef.current, scrollValue);\n };\n\n var moveTabsScroll = function moveTabsScroll(delta) {\n var scrollValue = tabsRef.current[scrollStart];\n\n if (vertical) {\n scrollValue += delta;\n } else {\n scrollValue += delta * (isRtl ? -1 : 1); // Fix for Edge\n\n scrollValue *= isRtl && detectScrollType() === 'reverse' ? -1 : 1;\n }\n\n scroll(scrollValue);\n };\n\n var handleStartScrollClick = function handleStartScrollClick() {\n moveTabsScroll(-tabsRef.current[clientSize]);\n };\n\n var handleEndScrollClick = function handleEndScrollClick() {\n moveTabsScroll(tabsRef.current[clientSize]);\n };\n\n var handleScrollbarSizeChange = React.useCallback(function (scrollbarHeight) {\n setScrollerStyle({\n overflow: null,\n marginBottom: -scrollbarHeight\n });\n }, []);\n\n var getConditionalElements = function getConditionalElements() {\n var conditionalElements = {};\n conditionalElements.scrollbarSizeListener = scrollable ? /*#__PURE__*/React.createElement(ScrollbarSize, {\n className: classes.scrollable,\n onChange: handleScrollbarSizeChange\n }) : null;\n var scrollButtonsActive = displayScroll.start || displayScroll.end;\n var showScrollButtons = scrollable && (scrollButtons === 'auto' && scrollButtonsActive || scrollButtons === 'desktop' || scrollButtons === 'on');\n conditionalElements.scrollButtonStart = showScrollButtons ? /*#__PURE__*/React.createElement(ScrollButtonComponent, _extends({\n orientation: orientation,\n direction: isRtl ? 'right' : 'left',\n onClick: handleStartScrollClick,\n disabled: !displayScroll.start,\n className: clsx(classes.scrollButtons, scrollButtons !== 'on' && classes.scrollButtonsDesktop)\n }, TabScrollButtonProps)) : null;\n conditionalElements.scrollButtonEnd = showScrollButtons ? /*#__PURE__*/React.createElement(ScrollButtonComponent, _extends({\n orientation: orientation,\n direction: isRtl ? 'left' : 'right',\n onClick: handleEndScrollClick,\n disabled: !displayScroll.end,\n className: clsx(classes.scrollButtons, scrollButtons !== 'on' && classes.scrollButtonsDesktop)\n }, TabScrollButtonProps)) : null;\n return conditionalElements;\n };\n\n var scrollSelectedIntoView = useEventCallback(function () {\n var _getTabsMeta2 = getTabsMeta(),\n tabsMeta = _getTabsMeta2.tabsMeta,\n tabMeta = _getTabsMeta2.tabMeta;\n\n if (!tabMeta || !tabsMeta) {\n return;\n }\n\n if (tabMeta[start] < tabsMeta[start]) {\n // left side of button is out of view\n var nextScrollStart = tabsMeta[scrollStart] + (tabMeta[start] - tabsMeta[start]);\n scroll(nextScrollStart);\n } else if (tabMeta[end] > tabsMeta[end]) {\n // right side of button is out of view\n var _nextScrollStart = tabsMeta[scrollStart] + (tabMeta[end] - tabsMeta[end]);\n\n scroll(_nextScrollStart);\n }\n });\n var updateScrollButtonState = useEventCallback(function () {\n if (scrollable && scrollButtons !== 'off') {\n var _tabsRef$current = tabsRef.current,\n scrollTop = _tabsRef$current.scrollTop,\n scrollHeight = _tabsRef$current.scrollHeight,\n clientHeight = _tabsRef$current.clientHeight,\n scrollWidth = _tabsRef$current.scrollWidth,\n clientWidth = _tabsRef$current.clientWidth;\n var showStartScroll;\n var showEndScroll;\n\n if (vertical) {\n showStartScroll = scrollTop > 1;\n showEndScroll = scrollTop < scrollHeight - clientHeight - 1;\n } else {\n var scrollLeft = getNormalizedScrollLeft(tabsRef.current, theme.direction); // use 1 for the potential rounding error with browser zooms.\n\n showStartScroll = isRtl ? scrollLeft < scrollWidth - clientWidth - 1 : scrollLeft > 1;\n showEndScroll = !isRtl ? scrollLeft < scrollWidth - clientWidth - 1 : scrollLeft > 1;\n }\n\n if (showStartScroll !== displayScroll.start || showEndScroll !== displayScroll.end) {\n setDisplayScroll({\n start: showStartScroll,\n end: showEndScroll\n });\n }\n }\n });\n React.useEffect(function () {\n var handleResize = debounce(function () {\n updateIndicatorState();\n updateScrollButtonState();\n });\n var win = ownerWindow(tabsRef.current);\n win.addEventListener('resize', handleResize);\n return function () {\n handleResize.clear();\n win.removeEventListener('resize', handleResize);\n };\n }, [updateIndicatorState, updateScrollButtonState]);\n var handleTabsScroll = React.useCallback(debounce(function () {\n updateScrollButtonState();\n }));\n React.useEffect(function () {\n return function () {\n handleTabsScroll.clear();\n };\n }, [handleTabsScroll]);\n React.useEffect(function () {\n setMounted(true);\n }, []);\n React.useEffect(function () {\n updateIndicatorState();\n updateScrollButtonState();\n });\n React.useEffect(function () {\n scrollSelectedIntoView();\n }, [scrollSelectedIntoView, indicatorStyle]);\n React.useImperativeHandle(action, function () {\n return {\n updateIndicator: updateIndicatorState,\n updateScrollButtons: updateScrollButtonState\n };\n }, [updateIndicatorState, updateScrollButtonState]);\n var indicator = /*#__PURE__*/React.createElement(TabIndicator, _extends({\n className: classes.indicator,\n orientation: orientation,\n color: indicatorColor\n }, TabIndicatorProps, {\n style: _extends({}, indicatorStyle, TabIndicatorProps.style)\n }));\n var childIndex = 0;\n var children = React.Children.map(childrenProp, function (child) {\n if (! /*#__PURE__*/React.isValidElement(child)) {\n return null;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (isFragment(child)) {\n console.error([\"Material-UI: The Tabs component doesn't accept a Fragment as a child.\", 'Consider providing an array instead.'].join('\\n'));\n }\n }\n\n var childValue = child.props.value === undefined ? childIndex : child.props.value;\n valueToIndex.set(childValue, childIndex);\n var selected = childValue === value;\n childIndex += 1;\n return /*#__PURE__*/React.cloneElement(child, {\n fullWidth: variant === 'fullWidth',\n indicator: selected && !mounted && indicator,\n selected: selected,\n selectionFollowsFocus: selectionFollowsFocus,\n onChange: onChange,\n textColor: textColor,\n value: childValue\n });\n });\n\n var handleKeyDown = function handleKeyDown(event) {\n var target = event.target; // Keyboard navigation assumes that [role=\"tab\"] are siblings\n // though we might warn in the future about nested, interactive elements\n // as a a11y violation\n\n var role = target.getAttribute('role');\n\n if (role !== 'tab') {\n return;\n }\n\n var newFocusTarget = null;\n var previousItemKey = orientation !== \"vertical\" ? 'ArrowLeft' : 'ArrowUp';\n var nextItemKey = orientation !== \"vertical\" ? 'ArrowRight' : 'ArrowDown';\n\n if (orientation !== \"vertical\" && theme.direction === 'rtl') {\n // swap previousItemKey with nextItemKey\n previousItemKey = 'ArrowRight';\n nextItemKey = 'ArrowLeft';\n }\n\n switch (event.key) {\n case previousItemKey:\n newFocusTarget = target.previousElementSibling || tabListRef.current.lastChild;\n break;\n\n case nextItemKey:\n newFocusTarget = target.nextElementSibling || tabListRef.current.firstChild;\n break;\n\n case 'Home':\n newFocusTarget = tabListRef.current.firstChild;\n break;\n\n case 'End':\n newFocusTarget = tabListRef.current.lastChild;\n break;\n\n default:\n break;\n }\n\n if (newFocusTarget !== null) {\n newFocusTarget.focus();\n event.preventDefault();\n }\n };\n\n var conditionalElements = getConditionalElements();\n return /*#__PURE__*/React.createElement(Component, _extends({\n className: clsx(classes.root, className, vertical && classes.vertical),\n ref: ref\n }, other), conditionalElements.scrollButtonStart, conditionalElements.scrollbarSizeListener, /*#__PURE__*/React.createElement(\"div\", {\n className: clsx(classes.scroller, scrollable ? classes.scrollable : classes.fixed),\n style: scrollerStyle,\n ref: tabsRef,\n onScroll: handleTabsScroll\n }, /*#__PURE__*/React.createElement(\"div\", {\n \"aria-label\": ariaLabel,\n \"aria-labelledby\": ariaLabelledBy,\n className: clsx(classes.flexContainer, vertical && classes.flexContainerVertical, centered && !scrollable && classes.centered),\n onKeyDown: handleKeyDown,\n ref: tabListRef,\n role: \"tablist\"\n }, children), mounted && indicator), conditionalElements.scrollButtonEnd);\n});\nprocess.env.NODE_ENV !== \"production\" ? Tabs.propTypes = {\n // ----------------------------- Warning --------------------------------\n // | These PropTypes are generated from the TypeScript type definitions |\n // | To update them edit the d.ts file and run \"yarn proptypes\" |\n // ----------------------------------------------------------------------\n\n /**\n * Callback fired when the component mounts.\n * This is useful when you want to trigger an action programmatically.\n * It supports two actions: `updateIndicator()` and `updateScrollButtons()`\n *\n * @param {object} actions This object contains all possible actions\n * that can be triggered programmatically.\n */\n action: refType,\n\n /**\n * The label for the Tabs as a string.\n */\n 'aria-label': PropTypes.string,\n\n /**\n * An id or list of ids separated by a space that label the Tabs.\n */\n 'aria-labelledby': PropTypes.string,\n\n /**\n * If `true`, the tabs will be centered.\n * This property is intended for large views.\n */\n centered: PropTypes.bool,\n\n /**\n * The content of the component.\n */\n children: PropTypes.node,\n\n /**\n * Override or extend the styles applied to the component.\n * See [CSS API](#css) below for more details.\n */\n classes: PropTypes.object,\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType,\n\n /**\n * Determines the color of the indicator.\n */\n indicatorColor: PropTypes.oneOf(['primary', 'secondary']),\n\n /**\n * Callback fired when the value changes.\n *\n * @param {object} event The event source of the callback\n * @param {any} value We default to the index of the child (number)\n */\n onChange: PropTypes.func,\n\n /**\n * The tabs orientation (layout flow direction).\n */\n orientation: PropTypes.oneOf(['horizontal', 'vertical']),\n\n /**\n * The component used to render the scroll buttons.\n */\n ScrollButtonComponent: PropTypes.elementType,\n\n /**\n * Determine behavior of scroll buttons when tabs are set to scroll:\n *\n * - `auto` will only present them when not all the items are visible.\n * - `desktop` will only present them on medium and larger viewports.\n * - `on` will always present them.\n * - `off` will never present them.\n */\n scrollButtons: PropTypes.oneOf(['auto', 'desktop', 'off', 'on']),\n\n /**\n * If `true` the selected tab changes on focus. Otherwise it only\n * changes on activation.\n */\n selectionFollowsFocus: PropTypes.bool,\n\n /**\n * Props applied to the tab indicator element.\n */\n TabIndicatorProps: PropTypes.object,\n\n /**\n * Props applied to the [`TabScrollButton`](/api/tab-scroll-button/) element.\n */\n TabScrollButtonProps: PropTypes.object,\n\n /**\n * Determines the color of the `Tab`.\n */\n textColor: PropTypes.oneOf(['inherit', 'primary', 'secondary']),\n\n /**\n * The value of the currently selected `Tab`.\n * If you don't want any selected `Tab`, you can set this property to `false`.\n */\n value: PropTypes.any,\n\n /**\n * Determines additional display behavior of the tabs:\n *\n * - `scrollable` will invoke scrolling properties and allow for horizontally\n * scrolling (or swiping) of the tab bar.\n * -`fullWidth` will make the tabs grow to use all the available space,\n * which should be used for small views, like on mobile.\n * - `standard` will render the default state.\n */\n variant: PropTypes.oneOf(['fullWidth', 'scrollable', 'standard'])\n} : void 0;\nexport default withStyles(styles, {\n name: 'MuiTabs'\n})(Tabs);","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport * as React from 'react';\nimport PropTypes from 'prop-types';\nimport clsx from 'clsx';\nimport { refType } from '@material-ui/utils';\nimport deprecatedPropType from '../utils/deprecatedPropType';\nimport Input from '../Input';\nimport FilledInput from '../FilledInput';\nimport OutlinedInput from '../OutlinedInput';\nimport InputLabel from '../InputLabel';\nimport FormControl from '../FormControl';\nimport FormHelperText from '../FormHelperText';\nimport Select from '../Select';\nimport withStyles from '../styles/withStyles';\nvar variantComponent = {\n standard: Input,\n filled: FilledInput,\n outlined: OutlinedInput\n};\nexport var styles = {\n /* Styles applied to the root element. */\n root: {}\n};\n/**\n * The `TextField` is a convenience wrapper for the most common cases (80%).\n * It cannot be all things to all people, otherwise the API would grow out of control.\n *\n * ## Advanced Configuration\n *\n * It's important to understand that the text field is a simple abstraction\n * on top of the following components:\n *\n * - [FormControl](/api/form-control/)\n * - [InputLabel](/api/input-label/)\n * - [FilledInput](/api/filled-input/)\n * - [OutlinedInput](/api/outlined-input/)\n * - [Input](/api/input/)\n * - [FormHelperText](/api/form-helper-text/)\n *\n * If you wish to alter the props applied to the `input` element, you can do so as follows:\n *\n * ```jsx\n * const inputProps = {\n * step: 300,\n * };\n *\n * return or value to any another.\n// From https://github.com/KyleAMathews/convert-css-length\n\nexport function convertLength(baseFontSize) {\n return function (length, toUnit) {\n var fromUnit = getUnit(length); // Optimize for cases where `from` and `to` units are accidentally the same.\n\n if (fromUnit === toUnit) {\n return length;\n } // Convert input length to pixels.\n\n\n var pxLength = toUnitless(length);\n\n if (fromUnit !== 'px') {\n if (fromUnit === 'em') {\n pxLength = toUnitless(length) * toUnitless(baseFontSize);\n } else if (fromUnit === 'rem') {\n pxLength = toUnitless(length) * toUnitless(baseFontSize);\n return length;\n }\n } // Convert length in pixels to the output unit\n\n\n var outputLength = pxLength;\n\n if (toUnit !== 'px') {\n if (toUnit === 'em') {\n outputLength = pxLength / toUnitless(baseFontSize);\n } else if (toUnit === 'rem') {\n outputLength = pxLength / toUnitless(baseFontSize);\n } else {\n return length;\n }\n }\n\n return parseFloat(outputLength.toFixed(5)) + toUnit;\n };\n}\nexport function alignProperty(_ref) {\n var size = _ref.size,\n grid = _ref.grid;\n var sizeBelow = size - size % grid;\n var sizeAbove = sizeBelow + grid;\n return size - sizeBelow < sizeAbove - size ? sizeBelow : sizeAbove;\n} // fontGrid finds a minimal grid (in rem) for the fontSize values so that the\n// lineHeight falls under a x pixels grid, 4px in the case of Material Design,\n// without changing the relative line height\n\nexport function fontGrid(_ref2) {\n var lineHeight = _ref2.lineHeight,\n pixels = _ref2.pixels,\n htmlFontSize = _ref2.htmlFontSize;\n return pixels / (lineHeight * htmlFontSize);\n}\n/**\n * generate a responsive version of a given CSS property\n * @example\n * responsiveProperty({\n * cssProperty: 'fontSize',\n * min: 15,\n * max: 20,\n * unit: 'px',\n * breakpoints: [300, 600],\n * })\n *\n * // this returns\n *\n * {\n * fontSize: '15px',\n * '@media (min-width:300px)': {\n * fontSize: '17.5px',\n * },\n * '@media (min-width:600px)': {\n * fontSize: '20px',\n * },\n * }\n *\n * @param {Object} params\n * @param {string} params.cssProperty - The CSS property to be made responsive\n * @param {number} params.min - The smallest value of the CSS property\n * @param {number} params.max - The largest value of the CSS property\n * @param {string} [params.unit] - The unit to be used for the CSS property\n * @param {Array.number} [params.breakpoints] - An array of breakpoints\n * @param {number} [params.alignStep] - Round scaled value to fall under this grid\n * @returns {Object} responsive styles for {params.cssProperty}\n */\n\nexport function responsiveProperty(_ref3) {\n var cssProperty = _ref3.cssProperty,\n min = _ref3.min,\n max = _ref3.max,\n _ref3$unit = _ref3.unit,\n unit = _ref3$unit === void 0 ? 'rem' : _ref3$unit,\n _ref3$breakpoints = _ref3.breakpoints,\n breakpoints = _ref3$breakpoints === void 0 ? [600, 960, 1280] : _ref3$breakpoints,\n _ref3$transform = _ref3.transform,\n transform = _ref3$transform === void 0 ? null : _ref3$transform;\n\n var output = _defineProperty({}, cssProperty, \"\".concat(min).concat(unit));\n\n var factor = (max - min) / breakpoints[breakpoints.length - 1];\n breakpoints.forEach(function (breakpoint) {\n var value = min + factor * breakpoint;\n\n if (transform !== null) {\n value = transform(value);\n }\n\n output[\"@media (min-width:\".concat(breakpoint, \"px)\")] = _defineProperty({}, cssProperty, \"\".concat(Math.round(value * 10000) / 10000).concat(unit));\n });\n return output;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport { formatMuiErrorMessage as _formatMuiErrorMessage } from \"@material-ui/utils\";\nimport { isUnitless, convertLength, responsiveProperty, alignProperty, fontGrid } from './cssUtils';\nexport default function responsiveFontSizes(themeInput) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n var _options$breakpoints = options.breakpoints,\n breakpoints = _options$breakpoints === void 0 ? ['sm', 'md', 'lg'] : _options$breakpoints,\n _options$disableAlign = options.disableAlign,\n disableAlign = _options$disableAlign === void 0 ? false : _options$disableAlign,\n _options$factor = options.factor,\n factor = _options$factor === void 0 ? 2 : _options$factor,\n _options$variants = options.variants,\n variants = _options$variants === void 0 ? ['h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'subtitle1', 'subtitle2', 'body1', 'body2', 'caption', 'button', 'overline'] : _options$variants;\n\n var theme = _extends({}, themeInput);\n\n theme.typography = _extends({}, theme.typography);\n var typography = theme.typography; // Convert between css lengths e.g. em->px or px->rem\n // Set the baseFontSize for your project. Defaults to 16px (also the browser default).\n\n var convert = convertLength(typography.htmlFontSize);\n var breakpointValues = breakpoints.map(function (x) {\n return theme.breakpoints.values[x];\n });\n variants.forEach(function (variant) {\n var style = typography[variant];\n var remFontSize = parseFloat(convert(style.fontSize, 'rem'));\n\n if (remFontSize <= 1) {\n return;\n }\n\n var maxFontSize = remFontSize;\n var minFontSize = 1 + (maxFontSize - 1) / factor;\n var lineHeight = style.lineHeight;\n\n if (!isUnitless(lineHeight) && !disableAlign) {\n throw new Error(process.env.NODE_ENV !== \"production\" ? \"Material-UI: Unsupported non-unitless line height with grid alignment.\\nUse unitless line heights instead.\" : _formatMuiErrorMessage(6));\n }\n\n if (!isUnitless(lineHeight)) {\n // make it unitless\n lineHeight = parseFloat(convert(lineHeight, 'rem')) / parseFloat(remFontSize);\n }\n\n var transform = null;\n\n if (!disableAlign) {\n transform = function transform(value) {\n return alignProperty({\n size: value,\n grid: fontGrid({\n pixels: 4,\n lineHeight: lineHeight,\n htmlFontSize: typography.htmlFontSize\n })\n });\n };\n }\n\n typography[variant] = _extends({}, style, responsiveProperty({\n cssProperty: 'fontSize',\n min: minFontSize,\n max: maxFontSize,\n unit: 'rem',\n breakpoints: breakpointValues,\n transform: transform\n }));\n });\n return theme;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport React from 'react';\nimport PropTypes from 'prop-types';\nimport hoistNonReactStatics from 'hoist-non-react-statics';\nimport { chainPropTypes, getDisplayName } from '@material-ui/utils';\nimport useTheme from '../useTheme';\nexport function withThemeCreator() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var defaultTheme = options.defaultTheme;\n\n var withTheme = function withTheme(Component) {\n if (process.env.NODE_ENV !== 'production') {\n if (Component === undefined) {\n throw new Error(['You are calling withTheme(Component) with an undefined component.', 'You may have forgotten to import it.'].join('\\n'));\n }\n }\n\n var WithTheme = /*#__PURE__*/React.forwardRef(function WithTheme(props, ref) {\n var innerRef = props.innerRef,\n other = _objectWithoutProperties(props, [\"innerRef\"]);\n\n var theme = useTheme() || defaultTheme;\n return /*#__PURE__*/React.createElement(Component, _extends({\n theme: theme,\n ref: innerRef || ref\n }, other));\n });\n process.env.NODE_ENV !== \"production\" ? WithTheme.propTypes = {\n /**\n * Use that prop to pass a ref to the decorated component.\n * @deprecated\n */\n innerRef: chainPropTypes(PropTypes.oneOfType([PropTypes.func, PropTypes.object]), function (props) {\n if (props.innerRef == null) {\n return null;\n }\n\n return new Error('Material-UI: The `innerRef` prop is deprecated and will be removed in v5. ' + 'Refs are now automatically forwarded to the inner component.');\n })\n } : void 0;\n\n if (process.env.NODE_ENV !== 'production') {\n WithTheme.displayName = \"WithTheme(\".concat(getDisplayName(Component), \")\");\n }\n\n hoistNonReactStatics(WithTheme, Component);\n\n if (process.env.NODE_ENV !== 'production') {\n // Exposed for test purposes.\n WithTheme.Naked = Component;\n }\n\n return WithTheme;\n };\n\n return withTheme;\n} // Provide the theme object as a prop to the input component.\n// It's an alternative API to useTheme().\n// We encourage the usage of useTheme() where possible.\n\nvar withTheme = withThemeCreator();\nexport default withTheme;","import { withThemeCreator } from '@material-ui/styles';\nimport defaultTheme from './defaultTheme';\nvar withTheme = withThemeCreator({\n defaultTheme: defaultTheme\n});\nexport default withTheme;","export default function _typeof(o) {\n \"@babel/helpers - typeof\";\n\n return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (o) {\n return typeof o;\n } : function (o) {\n return o && \"function\" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? \"symbol\" : typeof o;\n }, _typeof(o);\n}","import _typeof from \"./typeof.js\";\nimport toPrimitive from \"./toPrimitive.js\";\nexport default function toPropertyKey(t) {\n var i = toPrimitive(t, \"string\");\n return \"symbol\" == _typeof(i) ? i : i + \"\";\n}","import _typeof from \"./typeof.js\";\nexport default function toPrimitive(t, r) {\n if (\"object\" != _typeof(t) || !t) return t;\n var e = t[Symbol.toPrimitive];\n if (void 0 !== e) {\n var i = e.call(t, r || \"default\");\n if (\"object\" != _typeof(i)) return i;\n throw new TypeError(\"@@toPrimitive must return a primitive value.\");\n }\n return (\"string\" === r ? String : Number)(t);\n}","import toPropertyKey from \"./toPropertyKey.js\";\nfunction _defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, toPropertyKey(descriptor.key), descriptor);\n }\n}\nexport default function _createClass(Constructor, protoProps, staticProps) {\n if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n if (staticProps) _defineProperties(Constructor, staticProps);\n Object.defineProperty(Constructor, \"prototype\", {\n writable: false\n });\n return Constructor;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _classCallCheck from \"@babel/runtime/helpers/esm/classCallCheck\";\nimport _createClass from \"@babel/runtime/helpers/esm/createClass\";\nimport React from 'react';\nimport { SheetsRegistry } from 'jss';\nimport StylesProvider from '../StylesProvider';\nimport createGenerateClassName from '../createGenerateClassName';\n\nvar ServerStyleSheets = /*#__PURE__*/function () {\n function ServerStyleSheets() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n _classCallCheck(this, ServerStyleSheets);\n\n this.options = options;\n }\n\n _createClass(ServerStyleSheets, [{\n key: \"collect\",\n value: function collect(children) {\n // This is needed in order to deduplicate the injection of CSS in the page.\n var sheetsManager = new Map(); // This is needed in order to inject the critical CSS.\n\n this.sheetsRegistry = new SheetsRegistry(); // A new class name generator\n\n var generateClassName = createGenerateClassName();\n return /*#__PURE__*/React.createElement(StylesProvider, _extends({\n sheetsManager: sheetsManager,\n serverGenerateClassName: generateClassName,\n sheetsRegistry: this.sheetsRegistry\n }, this.options), children);\n }\n }, {\n key: \"toString\",\n value: function toString() {\n return this.sheetsRegistry ? this.sheetsRegistry.toString() : '';\n }\n }, {\n key: \"getStyleElement\",\n value: function getStyleElement(props) {\n return /*#__PURE__*/React.createElement('style', _extends({\n id: 'jss-server-side',\n key: 'jss-server-side',\n dangerouslySetInnerHTML: {\n __html: this.toString()\n }\n }, props));\n }\n }]);\n\n return ServerStyleSheets;\n}();\n\nexport { ServerStyleSheets as default };","export default function _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport React from 'react';\nimport PropTypes from 'prop-types';\nimport { exactProp } from '@material-ui/utils';\nimport ThemeContext from '../useTheme/ThemeContext';\nimport useTheme from '../useTheme';\nimport nested from './nested'; // To support composition of theme.\n\nfunction mergeOuterLocalTheme(outerTheme, localTheme) {\n if (typeof localTheme === 'function') {\n var mergedTheme = localTheme(outerTheme);\n\n if (process.env.NODE_ENV !== 'production') {\n if (!mergedTheme) {\n console.error(['Material-UI: You should return an object from your theme function, i.e.', ' ({})} />'].join('\\n'));\n }\n }\n\n return mergedTheme;\n }\n\n return _extends({}, outerTheme, localTheme);\n}\n/**\n * This component takes a `theme` prop.\n * It makes the `theme` available down the React tree thanks to React context.\n * This component should preferably be used at **the root of your component tree**.\n */\n\n\nfunction ThemeProvider(props) {\n var children = props.children,\n localTheme = props.theme;\n var outerTheme = useTheme();\n\n if (process.env.NODE_ENV !== 'production') {\n if (outerTheme === null && typeof localTheme === 'function') {\n console.error(['Material-UI: You are providing a theme function prop to the ThemeProvider component:', ' outerTheme} />', '', 'However, no outer theme is present.', 'Make sure a theme is already injected higher in the React tree ' + 'or provide a theme object.'].join('\\n'));\n }\n }\n\n var theme = React.useMemo(function () {\n var output = outerTheme === null ? localTheme : mergeOuterLocalTheme(outerTheme, localTheme);\n\n if (output != null) {\n output[nested] = outerTheme !== null;\n }\n\n return output;\n }, [localTheme, outerTheme]);\n return /*#__PURE__*/React.createElement(ThemeContext.Provider, {\n value: theme\n }, children);\n}\n\nprocess.env.NODE_ENV !== \"production\" ? ThemeProvider.propTypes = {\n /**\n * Your component tree.\n */\n children: PropTypes.node.isRequired,\n\n /**\n * A theme object. You can provide a function to extend the outer theme.\n */\n theme: PropTypes.oneOfType([PropTypes.object, PropTypes.func]).isRequired\n} : void 0;\n\nif (process.env.NODE_ENV !== 'production') {\n process.env.NODE_ENV !== \"production\" ? ThemeProvider.propTypes = exactProp(ThemeProvider.propTypes) : void 0;\n}\n\nexport default ThemeProvider;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport React from 'react';\nimport clsx from 'clsx';\nimport PropTypes from 'prop-types';\nimport { chainPropTypes, getDisplayName } from '@material-ui/utils';\nimport hoistNonReactStatics from 'hoist-non-react-statics';\nimport makeStyles from '../makeStyles';\n\nfunction omit(input, fields) {\n var output = {};\n Object.keys(input).forEach(function (prop) {\n if (fields.indexOf(prop) === -1) {\n output[prop] = input[prop];\n }\n });\n return output;\n} // styled-components's API removes the mapping between components and styles.\n// Using components as a low-level styling construct can be simpler.\n\n\nexport default function styled(Component) {\n var componentCreator = function componentCreator(style) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var name = options.name,\n stylesOptions = _objectWithoutProperties(options, [\"name\"]);\n\n if (process.env.NODE_ENV !== 'production' && Component === undefined) {\n throw new Error(['You are calling styled(Component)(style) with an undefined component.', 'You may have forgotten to import it.'].join('\\n'));\n }\n\n var classNamePrefix = name;\n\n if (process.env.NODE_ENV !== 'production') {\n if (!name) {\n // Provide a better DX outside production.\n var displayName = getDisplayName(Component);\n\n if (displayName !== undefined) {\n classNamePrefix = displayName;\n }\n }\n }\n\n var stylesOrCreator = typeof style === 'function' ? function (theme) {\n return {\n root: function root(props) {\n return style(_extends({\n theme: theme\n }, props));\n }\n };\n } : {\n root: style\n };\n var useStyles = makeStyles(stylesOrCreator, _extends({\n Component: Component,\n name: name || Component.displayName,\n classNamePrefix: classNamePrefix\n }, stylesOptions));\n var filterProps;\n var propTypes = {};\n\n if (style.filterProps) {\n filterProps = style.filterProps;\n delete style.filterProps;\n }\n /* eslint-disable react/forbid-foreign-prop-types */\n\n\n if (style.propTypes) {\n propTypes = style.propTypes;\n delete style.propTypes;\n }\n /* eslint-enable react/forbid-foreign-prop-types */\n\n\n var StyledComponent = /*#__PURE__*/React.forwardRef(function StyledComponent(props, ref) {\n var children = props.children,\n classNameProp = props.className,\n clone = props.clone,\n ComponentProp = props.component,\n other = _objectWithoutProperties(props, [\"children\", \"className\", \"clone\", \"component\"]);\n\n var classes = useStyles(props);\n var className = clsx(classes.root, classNameProp);\n var spread = other;\n\n if (filterProps) {\n spread = omit(spread, filterProps);\n }\n\n if (clone) {\n return /*#__PURE__*/React.cloneElement(children, _extends({\n className: clsx(children.props.className, className)\n }, spread));\n }\n\n if (typeof children === 'function') {\n return children(_extends({\n className: className\n }, spread));\n }\n\n var FinalComponent = ComponentProp || Component;\n return /*#__PURE__*/React.createElement(FinalComponent, _extends({\n ref: ref,\n className: className\n }, spread), children);\n });\n process.env.NODE_ENV !== \"production\" ? StyledComponent.propTypes = _extends({\n /**\n * A render function or node.\n */\n children: PropTypes.oneOfType([PropTypes.node, PropTypes.func]),\n\n /**\n * @ignore\n */\n className: PropTypes.string,\n\n /**\n * If `true`, the component will recycle it's children HTML element.\n * It's using `React.cloneElement` internally.\n *\n * This prop will be deprecated and removed in v5\n */\n clone: chainPropTypes(PropTypes.bool, function (props) {\n if (props.clone && props.component) {\n return new Error('You can not use the clone and component prop at the same time.');\n }\n\n return null;\n }),\n\n /**\n * The component used for the root node.\n * Either a string to use a HTML element or a component.\n */\n component: PropTypes\n /* @typescript-to-proptypes-ignore */\n .elementType\n }, propTypes) : void 0;\n\n if (process.env.NODE_ENV !== 'production') {\n StyledComponent.displayName = \"Styled(\".concat(classNamePrefix, \")\");\n }\n\n hoistNonReactStatics(StyledComponent, Component);\n return StyledComponent;\n };\n\n return componentCreator;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport { styled as styledWithoutDefault } from '@material-ui/styles';\nimport defaultTheme from './defaultTheme';\n\nvar styled = function styled(Component) {\n var componentCreator = styledWithoutDefault(Component);\n return function (style, options) {\n return componentCreator(style, _extends({\n defaultTheme: defaultTheme\n }, options));\n };\n};\n\nexport default styled;","import _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\n// Follow https://material.google.com/motion/duration-easing.html#duration-easing-natural-easing-curves\n// to learn the context in which each easing should be used.\nexport var easing = {\n // This is the most common easing curve.\n easeInOut: 'cubic-bezier(0.4, 0, 0.2, 1)',\n // Objects enter the screen at full velocity from off-screen and\n // slowly decelerate to a resting point.\n easeOut: 'cubic-bezier(0.0, 0, 0.2, 1)',\n // Objects leave the screen at full velocity. They do not decelerate when off-screen.\n easeIn: 'cubic-bezier(0.4, 0, 1, 1)',\n // The sharp curve is used by objects that may return to the screen at any time.\n sharp: 'cubic-bezier(0.4, 0, 0.6, 1)'\n}; // Follow https://material.io/guidelines/motion/duration-easing.html#duration-easing-common-durations\n// to learn when use what timing\n\nexport var duration = {\n shortest: 150,\n shorter: 200,\n short: 250,\n // most basic recommended timing\n standard: 300,\n // this is to be used in complex animations\n complex: 375,\n // recommended when something is entering screen\n enteringScreen: 225,\n // recommended when something is leaving screen\n leavingScreen: 195\n};\n\nfunction formatMs(milliseconds) {\n return \"\".concat(Math.round(milliseconds), \"ms\");\n}\n/**\n * @param {string|Array} props\n * @param {object} param\n * @param {string} param.prop\n * @param {number} param.duration\n * @param {string} param.easing\n * @param {number} param.delay\n */\n\n\nexport default {\n easing: easing,\n duration: duration,\n create: function create() {\n var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : ['all'];\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var _options$duration = options.duration,\n durationOption = _options$duration === void 0 ? duration.standard : _options$duration,\n _options$easing = options.easing,\n easingOption = _options$easing === void 0 ? easing.easeInOut : _options$easing,\n _options$delay = options.delay,\n delay = _options$delay === void 0 ? 0 : _options$delay,\n other = _objectWithoutProperties(options, [\"duration\", \"easing\", \"delay\"]);\n\n if (process.env.NODE_ENV !== 'production') {\n var isString = function isString(value) {\n return typeof value === 'string';\n };\n\n var isNumber = function isNumber(value) {\n return !isNaN(parseFloat(value));\n };\n\n if (!isString(props) && !Array.isArray(props)) {\n console.error('Material-UI: Argument \"props\" must be a string or Array.');\n }\n\n if (!isNumber(durationOption) && !isString(durationOption)) {\n console.error(\"Material-UI: Argument \\\"duration\\\" must be a number or a string but found \".concat(durationOption, \".\"));\n }\n\n if (!isString(easingOption)) {\n console.error('Material-UI: Argument \"easing\" must be a string.');\n }\n\n if (!isNumber(delay) && !isString(delay)) {\n console.error('Material-UI: Argument \"delay\" must be a number or a string.');\n }\n\n if (Object.keys(other).length !== 0) {\n console.error(\"Material-UI: Unrecognized argument(s) [\".concat(Object.keys(other).join(','), \"].\"));\n }\n }\n\n return (Array.isArray(props) ? props : [props]).map(function (animatedProp) {\n return \"\".concat(animatedProp, \" \").concat(typeof durationOption === 'string' ? durationOption : formatMs(durationOption), \" \").concat(easingOption, \" \").concat(typeof delay === 'string' ? delay : formatMs(delay));\n }).join(',');\n },\n getAutoHeightDuration: function getAutoHeightDuration(height) {\n if (!height) {\n return 0;\n }\n\n var constant = height / 36; // https://www.wolframalpha.com/input/?i=(4+%2B+15+*+(x+%2F+36+)+**+0.25+%2B+(x+%2F+36)+%2F+5)+*+10\n\n return Math.round((4 + 15 * Math.pow(constant, 0.25) + constant / 5) * 10);\n }\n};","import { useTheme as useThemeWithoutDefault } from '@material-ui/styles';\nimport React from 'react';\nimport defaultTheme from './defaultTheme';\nexport default function useTheme() {\n var theme = useThemeWithoutDefault() || defaultTheme;\n\n if (process.env.NODE_ENV !== 'production') {\n // eslint-disable-next-line react-hooks/rules-of-hooks\n React.useDebugValue(theme);\n }\n\n return theme;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport React from 'react';\nimport PropTypes from 'prop-types';\nimport hoistNonReactStatics from 'hoist-non-react-statics';\nimport { chainPropTypes, getDisplayName } from '@material-ui/utils';\nimport makeStyles from '../makeStyles';\nimport getThemeProps from '../getThemeProps';\nimport useTheme from '../useTheme'; // Link a style sheet with a component.\n// It does not modify the component passed to it;\n// instead, it returns a new component, with a `classes` property.\n\nvar withStyles = function withStyles(stylesOrCreator) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n return function (Component) {\n var defaultTheme = options.defaultTheme,\n _options$withTheme = options.withTheme,\n withTheme = _options$withTheme === void 0 ? false : _options$withTheme,\n name = options.name,\n stylesOptions = _objectWithoutProperties(options, [\"defaultTheme\", \"withTheme\", \"name\"]);\n\n if (process.env.NODE_ENV !== 'production') {\n if (Component === undefined) {\n throw new Error(['You are calling withStyles(styles)(Component) with an undefined component.', 'You may have forgotten to import it.'].join('\\n'));\n }\n }\n\n var classNamePrefix = name;\n\n if (process.env.NODE_ENV !== 'production') {\n if (!name) {\n // Provide a better DX outside production.\n var displayName = getDisplayName(Component);\n\n if (displayName !== undefined) {\n classNamePrefix = displayName;\n }\n }\n }\n\n var useStyles = makeStyles(stylesOrCreator, _extends({\n defaultTheme: defaultTheme,\n Component: Component,\n name: name || Component.displayName,\n classNamePrefix: classNamePrefix\n }, stylesOptions));\n var WithStyles = /*#__PURE__*/React.forwardRef(function WithStyles(props, ref) {\n var classesProp = props.classes,\n innerRef = props.innerRef,\n other = _objectWithoutProperties(props, [\"classes\", \"innerRef\"]); // The wrapper receives only user supplied props, which could be a subset of\n // the actual props Component might receive due to merging with defaultProps.\n // So copying it here would give us the same result in the wrapper as well.\n\n\n var classes = useStyles(_extends({}, Component.defaultProps, props));\n var theme;\n var more = other;\n\n if (typeof name === 'string' || withTheme) {\n // name and withTheme are invariant in the outer scope\n // eslint-disable-next-line react-hooks/rules-of-hooks\n theme = useTheme() || defaultTheme;\n\n if (name) {\n more = getThemeProps({\n theme: theme,\n name: name,\n props: other\n });\n } // Provide the theme to the wrapped component.\n // So we don't have to use the `withTheme()` Higher-order Component.\n\n\n if (withTheme && !more.theme) {\n more.theme = theme;\n }\n }\n\n return /*#__PURE__*/React.createElement(Component, _extends({\n ref: innerRef || ref,\n classes: classes\n }, more));\n });\n process.env.NODE_ENV !== \"production\" ? WithStyles.propTypes = {\n /**\n * Override or extend the styles applied to the component.\n */\n classes: PropTypes.object,\n\n /**\n * Use that prop to pass a ref to the decorated component.\n * @deprecated\n */\n innerRef: chainPropTypes(PropTypes.oneOfType([PropTypes.func, PropTypes.object]), function (props) {\n if (props.innerRef == null) {\n return null;\n }\n\n return null; // return new Error(\n // 'Material-UI: The `innerRef` prop is deprecated and will be removed in v5. ' +\n // 'Refs are now automatically forwarded to the inner component.',\n // );\n })\n } : void 0;\n\n if (process.env.NODE_ENV !== 'production') {\n WithStyles.displayName = \"WithStyles(\".concat(getDisplayName(Component), \")\");\n }\n\n hoistNonReactStatics(WithStyles, Component);\n\n if (process.env.NODE_ENV !== 'production') {\n // Exposed for test purposes.\n WithStyles.Naked = Component;\n WithStyles.options = options;\n WithStyles.useStyles = useStyles;\n }\n\n return WithStyles;\n };\n};\n\nexport default withStyles;","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport { withStyles as withStylesWithoutDefault } from '@material-ui/styles';\nimport defaultTheme from './defaultTheme';\n\nfunction withStyles(stylesOrCreator, options) {\n return withStylesWithoutDefault(stylesOrCreator, _extends({\n defaultTheme: defaultTheme\n }, options));\n}\n\nexport default withStyles;","// We need to centralize the zIndex definitions as they work\n// like global values in the browser.\nvar zIndex = {\n mobileStepper: 1000,\n speedDial: 1050,\n appBar: 1100,\n drawer: 1200,\n modal: 1300,\n snackbar: 1400,\n tooltip: 1500\n};\nexport default zIndex;","import { formatMuiErrorMessage as _formatMuiErrorMessage } from \"@material-ui/utils\";\n// It should to be noted that this function isn't equivalent to `text-transform: capitalize`.\n//\n// A strict capitalization should uppercase the first letter of each word a the sentence.\n// We only handle the first word.\nexport default function capitalize(string) {\n if (typeof string !== 'string') {\n throw new Error(process.env.NODE_ENV !== \"production\" ? \"Material-UI: capitalize(string) expects a string argument.\" : _formatMuiErrorMessage(7));\n }\n\n return string.charAt(0).toUpperCase() + string.slice(1);\n}","/** @license React v17.0.2\n * react-is.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict';var b=60103,c=60106,d=60107,e=60108,f=60114,g=60109,h=60110,k=60112,l=60113,m=60120,n=60115,p=60116,q=60121,r=60122,u=60117,v=60129,w=60131;\nif(\"function\"===typeof Symbol&&Symbol.for){var x=Symbol.for;b=x(\"react.element\");c=x(\"react.portal\");d=x(\"react.fragment\");e=x(\"react.strict_mode\");f=x(\"react.profiler\");g=x(\"react.provider\");h=x(\"react.context\");k=x(\"react.forward_ref\");l=x(\"react.suspense\");m=x(\"react.suspense_list\");n=x(\"react.memo\");p=x(\"react.lazy\");q=x(\"react.block\");r=x(\"react.server.block\");u=x(\"react.fundamental\");v=x(\"react.debug_trace_mode\");w=x(\"react.legacy_hidden\")}\nfunction y(a){if(\"object\"===typeof a&&null!==a){var t=a.$$typeof;switch(t){case b:switch(a=a.type,a){case d:case f:case e:case l:case m:return a;default:switch(a=a&&a.$$typeof,a){case h:case k:case p:case n:case g:return a;default:return t}}case c:return t}}}var z=g,A=b,B=k,C=d,D=p,E=n,F=c,G=f,H=e,I=l;exports.ContextConsumer=h;exports.ContextProvider=z;exports.Element=A;exports.ForwardRef=B;exports.Fragment=C;exports.Lazy=D;exports.Memo=E;exports.Portal=F;exports.Profiler=G;exports.StrictMode=H;\nexports.Suspense=I;exports.isAsyncMode=function(){return!1};exports.isConcurrentMode=function(){return!1};exports.isContextConsumer=function(a){return y(a)===h};exports.isContextProvider=function(a){return y(a)===g};exports.isElement=function(a){return\"object\"===typeof a&&null!==a&&a.$$typeof===b};exports.isForwardRef=function(a){return y(a)===k};exports.isFragment=function(a){return y(a)===d};exports.isLazy=function(a){return y(a)===p};exports.isMemo=function(a){return y(a)===n};\nexports.isPortal=function(a){return y(a)===c};exports.isProfiler=function(a){return y(a)===f};exports.isStrictMode=function(a){return y(a)===e};exports.isSuspense=function(a){return y(a)===l};exports.isValidElementType=function(a){return\"string\"===typeof a||\"function\"===typeof a||a===d||a===f||a===v||a===e||a===l||a===m||a===w||\"object\"===typeof a&&null!==a&&(a.$$typeof===p||a.$$typeof===n||a.$$typeof===g||a.$$typeof===h||a.$$typeof===k||a.$$typeof===u||a.$$typeof===q||a[0]===r)?!0:!1};\nexports.typeOf=y;\n","'use strict';\n\nif (process.env.NODE_ENV === 'production') {\n module.exports = require('./cjs/react-is.production.min.js');\n} else {\n module.exports = require('./cjs/react-is.development.js');\n}\n","\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = void 0;\n\nvar _react = _interopRequireDefault(require(\"react\"));\n\nvar _createSvgIcon = _interopRequireDefault(require(\"./utils/createSvgIcon\"));\n\nvar _default = (0, _createSvgIcon.default)(_react.default.createElement(\"path\", {\n d: \"M16.5 12c0-1.77-1.02-3.29-2.5-4.03v2.21l2.45 2.45c.03-.2.05-.41.05-.63zm2.5 0c0 .94-.2 1.82-.54 2.64l1.51 1.51C20.63 14.91 21 13.5 21 12c0-4.28-2.99-7.86-7-8.77v2.06c2.89.86 5 3.54 5 6.71zM4.27 3L3 4.27 7.73 9H3v6h4l5 5v-6.73l4.25 4.25c-.67.52-1.42.93-2.25 1.18v2.06c1.38-.31 2.63-.95 3.69-1.81L19.73 21 21 19.73l-9-9L4.27 3zM12 4L9.91 6.09 12 8.18V4z\"\n}), 'VolumeOff');\n\nexports.default = _default;","\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = void 0;\n\nvar _react = _interopRequireDefault(require(\"react\"));\n\nvar _createSvgIcon = _interopRequireDefault(require(\"./utils/createSvgIcon\"));\n\nvar _default = (0, _createSvgIcon.default)(_react.default.createElement(\"path\", {\n d: \"M3 9v6h4l5 5V4L7 9H3zm13.5 3c0-1.77-1.02-3.29-2.5-4.03v8.05c1.48-.73 2.5-2.25 2.5-4.02zM14 3.23v2.06c2.89.86 5 3.54 5 6.71s-2.11 5.85-5 6.71v2.06c4.01-.91 7-4.49 7-8.77s-2.99-7.86-7-8.77z\"\n}), 'VolumeUp');\n\nexports.default = _default;","\"use strict\";\n\nvar _interopRequireDefault = require(\"@babel/runtime/helpers/interopRequireDefault\");\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = createSvgIcon;\n\nvar _extends2 = _interopRequireDefault(require(\"@babel/runtime/helpers/extends\"));\n\nvar _react = _interopRequireDefault(require(\"react\"));\n\nvar _SvgIcon = _interopRequireDefault(require(\"@material-ui/core/SvgIcon\"));\n\nfunction createSvgIcon(path, displayName) {\n var Component = _react.default.memo(_react.default.forwardRef(function (props, ref) {\n return _react.default.createElement(_SvgIcon.default, (0, _extends2.default)({\n ref: ref\n }, props), path);\n }));\n\n if (process.env.NODE_ENV !== 'production') {\n Component.displayName = \"\".concat(displayName, \"Icon\");\n }\n\n Component.muiName = _SvgIcon.default.muiName;\n return Component;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport React from 'react';\nimport PropTypes from 'prop-types';\nimport { exactProp } from '@material-ui/utils';\nimport createGenerateClassName from '../createGenerateClassName';\nimport { create } from 'jss';\nimport jssPreset from '../jssPreset'; // Default JSS instance.\n\nvar jss = create(jssPreset()); // Use a singleton or the provided one by the context.\n//\n// The counter-based approach doesn't tolerate any mistake.\n// It's much safer to use the same counter everywhere.\n\nvar generateClassName = createGenerateClassName(); // Exported for test purposes\n\nexport var sheetsManager = new Map();\nvar defaultOptions = {\n disableGeneration: false,\n generateClassName: generateClassName,\n jss: jss,\n sheetsCache: null,\n sheetsManager: sheetsManager,\n sheetsRegistry: null\n};\nexport var StylesContext = React.createContext(defaultOptions);\n\nif (process.env.NODE_ENV !== 'production') {\n StylesContext.displayName = 'StylesContext';\n}\n\nvar injectFirstNode;\nexport default function StylesProvider(props) {\n var children = props.children,\n _props$injectFirst = props.injectFirst,\n injectFirst = _props$injectFirst === void 0 ? false : _props$injectFirst,\n _props$disableGenerat = props.disableGeneration,\n disableGeneration = _props$disableGenerat === void 0 ? false : _props$disableGenerat,\n localOptions = _objectWithoutProperties(props, [\"children\", \"injectFirst\", \"disableGeneration\"]);\n\n var outerOptions = React.useContext(StylesContext);\n\n var context = _extends({}, outerOptions, {\n disableGeneration: disableGeneration\n }, localOptions);\n\n if (process.env.NODE_ENV !== 'production') {\n if (typeof window === 'undefined' && !context.sheetsManager) {\n console.error('Material-UI: You need to use the ServerStyleSheets API when rendering on the server.');\n }\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (context.jss.options.insertionPoint && injectFirst) {\n console.error('Material-UI: You cannot use a custom insertionPoint and at the same time.');\n }\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (injectFirst && localOptions.jss) {\n console.error('Material-UI: You cannot use the jss and injectFirst props at the same time.');\n }\n }\n\n if (!context.jss.options.insertionPoint && injectFirst && typeof window !== 'undefined') {\n if (!injectFirstNode) {\n var head = document.head;\n injectFirstNode = document.createComment('mui-inject-first');\n head.insertBefore(injectFirstNode, head.firstChild);\n }\n\n context.jss = create({\n plugins: jssPreset().plugins,\n insertionPoint: injectFirstNode\n });\n }\n\n return /*#__PURE__*/React.createElement(StylesContext.Provider, {\n value: context\n }, children);\n}\nprocess.env.NODE_ENV !== \"production\" ? StylesProvider.propTypes = {\n /**\n * Your component tree.\n */\n children: PropTypes.node.isRequired,\n\n /**\n * You can disable the generation of the styles with this option.\n * It can be useful when traversing the React tree outside of the HTML\n * rendering step on the server.\n * Let's say you are using react-apollo to extract all\n * the queries made by the interface server-side - you can significantly speed up the traversal with this prop.\n */\n disableGeneration: PropTypes.bool,\n\n /**\n * JSS's class name generator.\n */\n generateClassName: PropTypes.func,\n\n /**\n * By default, the styles are injected last in the element of the page.\n * As a result, they gain more specificity than any other style sheet.\n * If you want to override Material-UI's styles, set this prop.\n */\n injectFirst: PropTypes.bool,\n\n /**\n * JSS's instance.\n */\n jss: PropTypes.object,\n\n /**\n * @ignore\n */\n serverGenerateClassName: PropTypes.func,\n\n /**\n * @ignore\n *\n * Beta feature.\n *\n * Cache for the sheets.\n */\n sheetsCache: PropTypes.object,\n\n /**\n * @ignore\n *\n * The sheetsManager is used to deduplicate style sheet injection in the page.\n * It's deduplicating using the (theme, styles) couple.\n * On the server, you should provide a new instance for each request.\n */\n sheetsManager: PropTypes.object,\n\n /**\n * @ignore\n *\n * Collect the sheets.\n */\n sheetsRegistry: PropTypes.object\n} : void 0;\n\nif (process.env.NODE_ENV !== 'production') {\n process.env.NODE_ENV !== \"production\" ? StylesProvider.propTypes = exactProp(StylesProvider.propTypes) : void 0;\n}","var hasSymbol = typeof Symbol === 'function' && Symbol.for;\nexport default hasSymbol ? Symbol.for('mui.nested') : '__THEME_NESTED__';","import nested from '../ThemeProvider/nested';\n/**\n * This is the list of the style rule name we use as drop in replacement for the built-in\n * pseudo classes (:checked, :disabled, :focused, etc.).\n *\n * Why do they exist in the first place?\n * These classes are used at a specificity of 2.\n * It allows them to override previously definied styles as well as\n * being untouched by simple user overrides.\n */\n\nvar pseudoClasses = ['checked', 'disabled', 'error', 'focused', 'focusVisible', 'required', 'expanded', 'selected']; // Returns a function which generates unique class names based on counters.\n// When new generator function is created, rule counter is reset.\n// We need to reset the rule counter for SSR for each request.\n//\n// It's inspired by\n// https://github.com/cssinjs/jss/blob/4e6a05dd3f7b6572fdd3ab216861d9e446c20331/src/utils/createGenerateClassName.js\n\nexport default function createGenerateClassName() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var _options$disableGloba = options.disableGlobal,\n disableGlobal = _options$disableGloba === void 0 ? false : _options$disableGloba,\n _options$productionPr = options.productionPrefix,\n productionPrefix = _options$productionPr === void 0 ? 'jss' : _options$productionPr,\n _options$seed = options.seed,\n seed = _options$seed === void 0 ? '' : _options$seed;\n var seedPrefix = seed === '' ? '' : \"\".concat(seed, \"-\");\n var ruleCounter = 0;\n\n var getNextCounterId = function getNextCounterId() {\n ruleCounter += 1;\n\n if (process.env.NODE_ENV !== 'production') {\n if (ruleCounter >= 1e10) {\n console.warn(['Material-UI: You might have a memory leak.', 'The ruleCounter is not supposed to grow that much.'].join(''));\n }\n }\n\n return ruleCounter;\n };\n\n return function (rule, styleSheet) {\n var name = styleSheet.options.name; // Is a global static MUI style?\n\n if (name && name.indexOf('Mui') === 0 && !styleSheet.options.link && !disableGlobal) {\n // We can use a shorthand class name, we never use the keys to style the components.\n if (pseudoClasses.indexOf(rule.key) !== -1) {\n return \"Mui-\".concat(rule.key);\n }\n\n var prefix = \"\".concat(seedPrefix).concat(name, \"-\").concat(rule.key);\n\n if (!styleSheet.options.theme[nested] || seed !== '') {\n return prefix;\n }\n\n return \"\".concat(prefix, \"-\").concat(getNextCounterId());\n }\n\n if (process.env.NODE_ENV === 'production') {\n return \"\".concat(seedPrefix).concat(productionPrefix).concat(getNextCounterId());\n }\n\n var suffix = \"\".concat(rule.key, \"-\").concat(getNextCounterId()); // Help with debuggability.\n\n if (styleSheet.options.classNamePrefix) {\n return \"\".concat(seedPrefix).concat(styleSheet.options.classNamePrefix, \"-\").concat(suffix);\n }\n\n return \"\".concat(seedPrefix).concat(suffix);\n };\n}","/* eslint-disable no-restricted-syntax */\nexport default function getThemeProps(params) {\n var theme = params.theme,\n name = params.name,\n props = params.props;\n\n if (!theme || !theme.props || !theme.props[name]) {\n return props;\n } // Resolve default props, code borrow from React source.\n // https://github.com/facebook/react/blob/15a8f031838a553e41c0b66eb1bcf1da8448104d/packages/react/src/ReactElement.js#L221\n\n\n var defaultProps = theme.props[name];\n var propName;\n\n for (propName in defaultProps) {\n if (props[propName] === undefined) {\n props[propName] = defaultProps[propName];\n }\n }\n\n return props;\n}","import warning from 'tiny-warning';\nimport { createRule } from 'jss';\n\nvar now = Date.now();\nvar fnValuesNs = \"fnValues\" + now;\nvar fnRuleNs = \"fnStyle\" + ++now;\n\nvar functionPlugin = function functionPlugin() {\n return {\n onCreateRule: function onCreateRule(name, decl, options) {\n if (typeof decl !== 'function') return null;\n var rule = createRule(name, {}, options);\n rule[fnRuleNs] = decl;\n return rule;\n },\n onProcessStyle: function onProcessStyle(style, rule) {\n // We need to extract function values from the declaration, so that we can keep core unaware of them.\n // We need to do that only once.\n // We don't need to extract functions on each style update, since this can happen only once.\n // We don't support function values inside of function rules.\n if (fnValuesNs in rule || fnRuleNs in rule) return style;\n var fnValues = {};\n\n for (var prop in style) {\n var value = style[prop];\n if (typeof value !== 'function') continue;\n delete style[prop];\n fnValues[prop] = value;\n }\n\n rule[fnValuesNs] = fnValues;\n return style;\n },\n onUpdate: function onUpdate(data, rule, sheet, options) {\n var styleRule = rule;\n var fnRule = styleRule[fnRuleNs]; // If we have a style function, the entire rule is dynamic and style object\n // will be returned from that function.\n\n if (fnRule) {\n // Empty object will remove all currently defined props\n // in case function rule returns a falsy value.\n styleRule.style = fnRule(data) || {};\n\n if (process.env.NODE_ENV === 'development') {\n for (var prop in styleRule.style) {\n if (typeof styleRule.style[prop] === 'function') {\n process.env.NODE_ENV !== \"production\" ? warning(false, '[JSS] Function values inside function rules are not supported.') : void 0;\n break;\n }\n }\n }\n }\n\n var fnValues = styleRule[fnValuesNs]; // If we have a fn values map, it is a rule with function values.\n\n if (fnValues) {\n for (var _prop in fnValues) {\n styleRule.prop(_prop, fnValues[_prop](data), options);\n }\n }\n }\n };\n};\n\nexport default functionPlugin;\n","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","import _extends from '@babel/runtime/helpers/esm/extends';\nimport { RuleList } from 'jss';\n\nvar at = '@global';\nvar atPrefix = '@global ';\n\nvar GlobalContainerRule =\n/*#__PURE__*/\nfunction () {\n function GlobalContainerRule(key, styles, options) {\n this.type = 'global';\n this.at = at;\n this.isProcessed = false;\n this.key = key;\n this.options = options;\n this.rules = new RuleList(_extends({}, options, {\n parent: this\n }));\n\n for (var selector in styles) {\n this.rules.add(selector, styles[selector]);\n }\n\n this.rules.process();\n }\n /**\n * Get a rule.\n */\n\n\n var _proto = GlobalContainerRule.prototype;\n\n _proto.getRule = function getRule(name) {\n return this.rules.get(name);\n }\n /**\n * Create and register rule, run plugins.\n */\n ;\n\n _proto.addRule = function addRule(name, style, options) {\n var rule = this.rules.add(name, style, options);\n if (rule) this.options.jss.plugins.onProcessRule(rule);\n return rule;\n }\n /**\n * Replace rule, run plugins.\n */\n ;\n\n _proto.replaceRule = function replaceRule(name, style, options) {\n var newRule = this.rules.replace(name, style, options);\n if (newRule) this.options.jss.plugins.onProcessRule(newRule);\n return newRule;\n }\n /**\n * Get index of a rule.\n */\n ;\n\n _proto.indexOf = function indexOf(rule) {\n return this.rules.indexOf(rule);\n }\n /**\n * Generates a CSS string.\n */\n ;\n\n _proto.toString = function toString(options) {\n return this.rules.toString(options);\n };\n\n return GlobalContainerRule;\n}();\n\nvar GlobalPrefixedRule =\n/*#__PURE__*/\nfunction () {\n function GlobalPrefixedRule(key, style, options) {\n this.type = 'global';\n this.at = at;\n this.isProcessed = false;\n this.key = key;\n this.options = options;\n var selector = key.substr(atPrefix.length);\n this.rule = options.jss.createRule(selector, style, _extends({}, options, {\n parent: this\n }));\n }\n\n var _proto2 = GlobalPrefixedRule.prototype;\n\n _proto2.toString = function toString(options) {\n return this.rule ? this.rule.toString(options) : '';\n };\n\n return GlobalPrefixedRule;\n}();\n\nvar separatorRegExp = /\\s*,\\s*/g;\n\nfunction addScope(selector, scope) {\n var parts = selector.split(separatorRegExp);\n var scoped = '';\n\n for (var i = 0; i < parts.length; i++) {\n scoped += scope + \" \" + parts[i].trim();\n if (parts[i + 1]) scoped += ', ';\n }\n\n return scoped;\n}\n\nfunction handleNestedGlobalContainerRule(rule, sheet) {\n var options = rule.options,\n style = rule.style;\n var rules = style ? style[at] : null;\n if (!rules) return;\n\n for (var name in rules) {\n sheet.addRule(name, rules[name], _extends({}, options, {\n selector: addScope(name, rule.selector)\n }));\n }\n\n delete style[at];\n}\n\nfunction handlePrefixedGlobalRule(rule, sheet) {\n var options = rule.options,\n style = rule.style;\n\n for (var prop in style) {\n if (prop[0] !== '@' || prop.substr(0, at.length) !== at) continue;\n var selector = addScope(prop.substr(at.length), rule.selector);\n sheet.addRule(selector, style[prop], _extends({}, options, {\n selector: selector\n }));\n delete style[prop];\n }\n}\n/**\n * Convert nested rules to separate, remove them from original styles.\n */\n\n\nfunction jssGlobal() {\n function onCreateRule(name, styles, options) {\n if (!name) return null;\n\n if (name === at) {\n return new GlobalContainerRule(name, styles, options);\n }\n\n if (name[0] === '@' && name.substr(0, atPrefix.length) === atPrefix) {\n return new GlobalPrefixedRule(name, styles, options);\n }\n\n var parent = options.parent;\n\n if (parent) {\n if (parent.type === 'global' || parent.options.parent && parent.options.parent.type === 'global') {\n options.scoped = false;\n }\n }\n\n if (!options.selector && options.scoped === false) {\n options.selector = name;\n }\n\n return null;\n }\n\n function onProcessRule(rule, sheet) {\n if (rule.type !== 'style' || !sheet) return;\n handleNestedGlobalContainerRule(rule, sheet);\n handlePrefixedGlobalRule(rule, sheet);\n }\n\n return {\n onCreateRule: onCreateRule,\n onProcessRule: onProcessRule\n };\n}\n\nexport default jssGlobal;\n","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","import _extends from '@babel/runtime/helpers/esm/extends';\nimport warning from 'tiny-warning';\n\nvar separatorRegExp = /\\s*,\\s*/g;\nvar parentRegExp = /&/g;\nvar refRegExp = /\\$([\\w-]+)/g;\n/**\n * Convert nested rules to separate, remove them from original styles.\n */\n\nfunction jssNested() {\n // Get a function to be used for $ref replacement.\n function getReplaceRef(container, sheet) {\n return function (match, key) {\n var rule = container.getRule(key) || sheet && sheet.getRule(key);\n\n if (rule) {\n return rule.selector;\n }\n\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Could not find the referenced rule \\\"\" + key + \"\\\" in \\\"\" + (container.options.meta || container.toString()) + \"\\\".\") : void 0;\n return key;\n };\n }\n\n function replaceParentRefs(nestedProp, parentProp) {\n var parentSelectors = parentProp.split(separatorRegExp);\n var nestedSelectors = nestedProp.split(separatorRegExp);\n var result = '';\n\n for (var i = 0; i < parentSelectors.length; i++) {\n var parent = parentSelectors[i];\n\n for (var j = 0; j < nestedSelectors.length; j++) {\n var nested = nestedSelectors[j];\n if (result) result += ', '; // Replace all & by the parent or prefix & with the parent.\n\n result += nested.indexOf('&') !== -1 ? nested.replace(parentRegExp, parent) : parent + \" \" + nested;\n }\n }\n\n return result;\n }\n\n function getOptions(rule, container, prevOptions) {\n // Options has been already created, now we only increase index.\n if (prevOptions) return _extends({}, prevOptions, {\n index: prevOptions.index + 1\n });\n var nestingLevel = rule.options.nestingLevel;\n nestingLevel = nestingLevel === undefined ? 1 : nestingLevel + 1;\n\n var options = _extends({}, rule.options, {\n nestingLevel: nestingLevel,\n index: container.indexOf(rule) + 1 // We don't need the parent name to be set options for chlid.\n\n });\n\n delete options.name;\n return options;\n }\n\n function onProcessStyle(style, rule, sheet) {\n if (rule.type !== 'style') return style;\n var styleRule = rule;\n var container = styleRule.options.parent;\n var options;\n var replaceRef;\n\n for (var prop in style) {\n var isNested = prop.indexOf('&') !== -1;\n var isNestedConditional = prop[0] === '@';\n if (!isNested && !isNestedConditional) continue;\n options = getOptions(styleRule, container, options);\n\n if (isNested) {\n var selector = replaceParentRefs(prop, styleRule.selector); // Lazily create the ref replacer function just once for\n // all nested rules within the sheet.\n\n if (!replaceRef) replaceRef = getReplaceRef(container, sheet); // Replace all $refs.\n\n selector = selector.replace(refRegExp, replaceRef);\n var name = styleRule.key + \"-\" + prop;\n\n if ('replaceRule' in container) {\n // for backward compatibility\n container.replaceRule(name, style[prop], _extends({}, options, {\n selector: selector\n }));\n } else {\n container.addRule(name, style[prop], _extends({}, options, {\n selector: selector\n }));\n }\n } else if (isNestedConditional) {\n // Place conditional right after the parent rule to ensure right ordering.\n container.addRule(prop, {}, options).addRule(styleRule.key, style[prop], {\n selector: styleRule.selector\n });\n }\n\n delete style[prop];\n }\n\n return style;\n }\n\n return {\n onProcessStyle: onProcessStyle\n };\n}\n\nexport default jssNested;\n","/* eslint-disable no-var, prefer-template */\nvar uppercasePattern = /[A-Z]/g\nvar msPattern = /^ms-/\nvar cache = {}\n\nfunction toHyphenLower(match) {\n return '-' + match.toLowerCase()\n}\n\nfunction hyphenateStyleName(name) {\n if (cache.hasOwnProperty(name)) {\n return cache[name]\n }\n\n var hName = name.replace(uppercasePattern, toHyphenLower)\n return (cache[name] = msPattern.test(hName) ? '-' + hName : hName)\n}\n\nexport default hyphenateStyleName\n","import hyphenate from 'hyphenate-style-name';\n\n/**\n * Convert camel cased property names to dash separated.\n */\n\nfunction convertCase(style) {\n var converted = {};\n\n for (var prop in style) {\n var key = prop.indexOf('--') === 0 ? prop : hyphenate(prop);\n converted[key] = style[prop];\n }\n\n if (style.fallbacks) {\n if (Array.isArray(style.fallbacks)) converted.fallbacks = style.fallbacks.map(convertCase);else converted.fallbacks = convertCase(style.fallbacks);\n }\n\n return converted;\n}\n/**\n * Allow camel cased property names by converting them back to dasherized.\n */\n\n\nfunction camelCase() {\n function onProcessStyle(style) {\n if (Array.isArray(style)) {\n // Handle rules like @font-face, which can have multiple styles in an array\n for (var index = 0; index < style.length; index++) {\n style[index] = convertCase(style[index]);\n }\n\n return style;\n }\n\n return convertCase(style);\n }\n\n function onChangeValue(value, prop, rule) {\n if (prop.indexOf('--') === 0) {\n return value;\n }\n\n var hyphenatedProp = hyphenate(prop); // There was no camel case in place\n\n if (prop === hyphenatedProp) return value;\n rule.prop(hyphenatedProp, value); // Core will ignore that property value we set the proper one above.\n\n return null;\n }\n\n return {\n onProcessStyle: onProcessStyle,\n onChangeValue: onChangeValue\n };\n}\n\nexport default camelCase;\n","import { hasCSSTOMSupport } from 'jss';\n\nvar px = hasCSSTOMSupport && CSS ? CSS.px : 'px';\nvar ms = hasCSSTOMSupport && CSS ? CSS.ms : 'ms';\nvar percent = hasCSSTOMSupport && CSS ? CSS.percent : '%';\n/**\n * Generated jss-plugin-default-unit CSS property units\n */\n\nvar defaultUnits = {\n // Animation properties\n 'animation-delay': ms,\n 'animation-duration': ms,\n // Background properties\n 'background-position': px,\n 'background-position-x': px,\n 'background-position-y': px,\n 'background-size': px,\n // Border Properties\n border: px,\n 'border-bottom': px,\n 'border-bottom-left-radius': px,\n 'border-bottom-right-radius': px,\n 'border-bottom-width': px,\n 'border-left': px,\n 'border-left-width': px,\n 'border-radius': px,\n 'border-right': px,\n 'border-right-width': px,\n 'border-top': px,\n 'border-top-left-radius': px,\n 'border-top-right-radius': px,\n 'border-top-width': px,\n 'border-width': px,\n 'border-block': px,\n 'border-block-end': px,\n 'border-block-end-width': px,\n 'border-block-start': px,\n 'border-block-start-width': px,\n 'border-block-width': px,\n 'border-inline': px,\n 'border-inline-end': px,\n 'border-inline-end-width': px,\n 'border-inline-start': px,\n 'border-inline-start-width': px,\n 'border-inline-width': px,\n 'border-start-start-radius': px,\n 'border-start-end-radius': px,\n 'border-end-start-radius': px,\n 'border-end-end-radius': px,\n // Margin properties\n margin: px,\n 'margin-bottom': px,\n 'margin-left': px,\n 'margin-right': px,\n 'margin-top': px,\n 'margin-block': px,\n 'margin-block-end': px,\n 'margin-block-start': px,\n 'margin-inline': px,\n 'margin-inline-end': px,\n 'margin-inline-start': px,\n // Padding properties\n padding: px,\n 'padding-bottom': px,\n 'padding-left': px,\n 'padding-right': px,\n 'padding-top': px,\n 'padding-block': px,\n 'padding-block-end': px,\n 'padding-block-start': px,\n 'padding-inline': px,\n 'padding-inline-end': px,\n 'padding-inline-start': px,\n // Mask properties\n 'mask-position-x': px,\n 'mask-position-y': px,\n 'mask-size': px,\n // Width and height properties\n height: px,\n width: px,\n 'min-height': px,\n 'max-height': px,\n 'min-width': px,\n 'max-width': px,\n // Position properties\n bottom: px,\n left: px,\n top: px,\n right: px,\n inset: px,\n 'inset-block': px,\n 'inset-block-end': px,\n 'inset-block-start': px,\n 'inset-inline': px,\n 'inset-inline-end': px,\n 'inset-inline-start': px,\n // Shadow properties\n 'box-shadow': px,\n 'text-shadow': px,\n // Column properties\n 'column-gap': px,\n 'column-rule': px,\n 'column-rule-width': px,\n 'column-width': px,\n // Font and text properties\n 'font-size': px,\n 'font-size-delta': px,\n 'letter-spacing': px,\n 'text-decoration-thickness': px,\n 'text-indent': px,\n 'text-stroke': px,\n 'text-stroke-width': px,\n 'word-spacing': px,\n // Motion properties\n motion: px,\n 'motion-offset': px,\n // Outline properties\n outline: px,\n 'outline-offset': px,\n 'outline-width': px,\n // Perspective properties\n perspective: px,\n 'perspective-origin-x': percent,\n 'perspective-origin-y': percent,\n // Transform properties\n 'transform-origin': percent,\n 'transform-origin-x': percent,\n 'transform-origin-y': percent,\n 'transform-origin-z': percent,\n // Transition properties\n 'transition-delay': ms,\n 'transition-duration': ms,\n // Alignment properties\n 'vertical-align': px,\n 'flex-basis': px,\n // Some random properties\n 'shape-margin': px,\n size: px,\n gap: px,\n // Grid properties\n grid: px,\n 'grid-gap': px,\n 'row-gap': px,\n 'grid-row-gap': px,\n 'grid-column-gap': px,\n 'grid-template-rows': px,\n 'grid-template-columns': px,\n 'grid-auto-rows': px,\n 'grid-auto-columns': px,\n // Not existing properties.\n // Used to avoid issues with jss-plugin-expand integration.\n 'box-shadow-x': px,\n 'box-shadow-y': px,\n 'box-shadow-blur': px,\n 'box-shadow-spread': px,\n 'font-line-height': px,\n 'text-shadow-x': px,\n 'text-shadow-y': px,\n 'text-shadow-blur': px\n};\n\n/**\n * Clones the object and adds a camel cased property version.\n */\n\nfunction addCamelCasedVersion(obj) {\n var regExp = /(-[a-z])/g;\n\n var replace = function replace(str) {\n return str[1].toUpperCase();\n };\n\n var newObj = {};\n\n for (var key in obj) {\n newObj[key] = obj[key];\n newObj[key.replace(regExp, replace)] = obj[key];\n }\n\n return newObj;\n}\n\nvar units = addCamelCasedVersion(defaultUnits);\n/**\n * Recursive deep style passing function\n */\n\nfunction iterate(prop, value, options) {\n if (value == null) return value;\n\n if (Array.isArray(value)) {\n for (var i = 0; i < value.length; i++) {\n value[i] = iterate(prop, value[i], options);\n }\n } else if (typeof value === 'object') {\n if (prop === 'fallbacks') {\n for (var innerProp in value) {\n value[innerProp] = iterate(innerProp, value[innerProp], options);\n }\n } else {\n for (var _innerProp in value) {\n value[_innerProp] = iterate(prop + \"-\" + _innerProp, value[_innerProp], options);\n }\n } // eslint-disable-next-line no-restricted-globals\n\n } else if (typeof value === 'number' && isNaN(value) === false) {\n var unit = options[prop] || units[prop]; // Add the unit if available, except for the special case of 0px.\n\n if (unit && !(value === 0 && unit === px)) {\n return typeof unit === 'function' ? unit(value).toString() : \"\" + value + unit;\n }\n\n return value.toString();\n }\n\n return value;\n}\n/**\n * Add unit to numeric values.\n */\n\n\nfunction defaultUnit(options) {\n if (options === void 0) {\n options = {};\n }\n\n var camelCasedOptions = addCamelCasedVersion(options);\n\n function onProcessStyle(style, rule) {\n if (rule.type !== 'style') return style;\n\n for (var prop in style) {\n style[prop] = iterate(prop, style[prop], camelCasedOptions);\n }\n\n return style;\n }\n\n function onChangeValue(value, prop) {\n return iterate(prop, value, camelCasedOptions);\n }\n\n return {\n onProcessStyle: onProcessStyle,\n onChangeValue: onChangeValue\n };\n}\n\nexport default defaultUnit;\n","export default function _arrayLikeToArray(arr, len) {\n if (len == null || len > arr.length) len = arr.length;\n for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];\n return arr2;\n}","import arrayWithoutHoles from \"./arrayWithoutHoles.js\";\nimport iterableToArray from \"./iterableToArray.js\";\nimport unsupportedIterableToArray from \"./unsupportedIterableToArray.js\";\nimport nonIterableSpread from \"./nonIterableSpread.js\";\nexport default function _toConsumableArray(arr) {\n return arrayWithoutHoles(arr) || iterableToArray(arr) || unsupportedIterableToArray(arr) || nonIterableSpread();\n}","import arrayLikeToArray from \"./arrayLikeToArray.js\";\nexport default function _arrayWithoutHoles(arr) {\n if (Array.isArray(arr)) return arrayLikeToArray(arr);\n}","export default function _iterableToArray(iter) {\n if (typeof Symbol !== \"undefined\" && iter[Symbol.iterator] != null || iter[\"@@iterator\"] != null) return Array.from(iter);\n}","import arrayLikeToArray from \"./arrayLikeToArray.js\";\nexport default function _unsupportedIterableToArray(o, minLen) {\n if (!o) return;\n if (typeof o === \"string\") return arrayLikeToArray(o, minLen);\n var n = Object.prototype.toString.call(o).slice(8, -1);\n if (n === \"Object\" && o.constructor) n = o.constructor.name;\n if (n === \"Map\" || n === \"Set\") return Array.from(o);\n if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n}","export default function _nonIterableSpread() {\n throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}","import isInBrowser from 'is-in-browser';\nimport _toConsumableArray from '@babel/runtime/helpers/esm/toConsumableArray';\n\n// Export javascript style and css style vendor prefixes.\nvar js = '';\nvar css = '';\nvar vendor = '';\nvar browser = '';\nvar isTouch = isInBrowser && 'ontouchstart' in document.documentElement; // We should not do anything if required serverside.\n\nif (isInBrowser) {\n // Order matters. We need to check Webkit the last one because\n // other vendors use to add Webkit prefixes to some properties\n var jsCssMap = {\n Moz: '-moz-',\n ms: '-ms-',\n O: '-o-',\n Webkit: '-webkit-'\n };\n\n var _document$createEleme = document.createElement('p'),\n style = _document$createEleme.style;\n\n var testProp = 'Transform';\n\n for (var key in jsCssMap) {\n if (key + testProp in style) {\n js = key;\n css = jsCssMap[key];\n break;\n }\n } // Correctly detect the Edge browser.\n\n\n if (js === 'Webkit' && 'msHyphens' in style) {\n js = 'ms';\n css = jsCssMap.ms;\n browser = 'edge';\n } // Correctly detect the Safari browser.\n\n\n if (js === 'Webkit' && '-apple-trailing-word' in style) {\n vendor = 'apple';\n }\n}\n/**\n * Vendor prefix string for the current browser.\n *\n * @type {{js: String, css: String, vendor: String, browser: String}}\n * @api public\n */\n\n\nvar prefix = {\n js: js,\n css: css,\n vendor: vendor,\n browser: browser,\n isTouch: isTouch\n};\n\n/**\n * Test if a keyframe at-rule should be prefixed or not\n *\n * @param {String} vendor prefix string for the current browser.\n * @return {String}\n * @api public\n */\n\nfunction supportedKeyframes(key) {\n // Keyframes is already prefixed. e.g. key = '@-webkit-keyframes a'\n if (key[1] === '-') return key; // No need to prefix IE/Edge. Older browsers will ignore unsupported rules.\n // https://caniuse.com/#search=keyframes\n\n if (prefix.js === 'ms') return key;\n return \"@\" + prefix.css + \"keyframes\" + key.substr(10);\n}\n\n// https://caniuse.com/#search=appearance\n\nvar appearence = {\n noPrefill: ['appearance'],\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'appearance') return false;\n if (prefix.js === 'ms') return \"-webkit-\" + prop;\n return prefix.css + prop;\n }\n};\n\n// https://caniuse.com/#search=color-adjust\n\nvar colorAdjust = {\n noPrefill: ['color-adjust'],\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'color-adjust') return false;\n if (prefix.js === 'Webkit') return prefix.css + \"print-\" + prop;\n return prop;\n }\n};\n\nvar regExp = /[-\\s]+(.)?/g;\n/**\n * Replaces the letter with the capital letter\n *\n * @param {String} match\n * @param {String} c\n * @return {String}\n * @api private\n */\n\nfunction toUpper(match, c) {\n return c ? c.toUpperCase() : '';\n}\n/**\n * Convert dash separated strings to camel-cased.\n *\n * @param {String} str\n * @return {String}\n * @api private\n */\n\n\nfunction camelize(str) {\n return str.replace(regExp, toUpper);\n}\n\n/**\n * Convert dash separated strings to pascal cased.\n *\n * @param {String} str\n * @return {String}\n * @api private\n */\n\nfunction pascalize(str) {\n return camelize(\"-\" + str);\n}\n\n// but we can use a longhand property instead.\n// https://caniuse.com/#search=mask\n\nvar mask = {\n noPrefill: ['mask'],\n supportedProperty: function supportedProperty(prop, style) {\n if (!/^mask/.test(prop)) return false;\n\n if (prefix.js === 'Webkit') {\n var longhand = 'mask-image';\n\n if (camelize(longhand) in style) {\n return prop;\n }\n\n if (prefix.js + pascalize(longhand) in style) {\n return prefix.css + prop;\n }\n }\n\n return prop;\n }\n};\n\n// https://caniuse.com/#search=text-orientation\n\nvar textOrientation = {\n noPrefill: ['text-orientation'],\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'text-orientation') return false;\n\n if (prefix.vendor === 'apple' && !prefix.isTouch) {\n return prefix.css + prop;\n }\n\n return prop;\n }\n};\n\n// https://caniuse.com/#search=transform\n\nvar transform = {\n noPrefill: ['transform'],\n supportedProperty: function supportedProperty(prop, style, options) {\n if (prop !== 'transform') return false;\n\n if (options.transform) {\n return prop;\n }\n\n return prefix.css + prop;\n }\n};\n\n// https://caniuse.com/#search=transition\n\nvar transition = {\n noPrefill: ['transition'],\n supportedProperty: function supportedProperty(prop, style, options) {\n if (prop !== 'transition') return false;\n\n if (options.transition) {\n return prop;\n }\n\n return prefix.css + prop;\n }\n};\n\n// https://caniuse.com/#search=writing-mode\n\nvar writingMode = {\n noPrefill: ['writing-mode'],\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'writing-mode') return false;\n\n if (prefix.js === 'Webkit' || prefix.js === 'ms' && prefix.browser !== 'edge') {\n return prefix.css + prop;\n }\n\n return prop;\n }\n};\n\n// https://caniuse.com/#search=user-select\n\nvar userSelect = {\n noPrefill: ['user-select'],\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'user-select') return false;\n\n if (prefix.js === 'Moz' || prefix.js === 'ms' || prefix.vendor === 'apple') {\n return prefix.css + prop;\n }\n\n return prop;\n }\n};\n\n// https://caniuse.com/#search=multicolumn\n// https://github.com/postcss/autoprefixer/issues/491\n// https://github.com/postcss/autoprefixer/issues/177\n\nvar breakPropsOld = {\n supportedProperty: function supportedProperty(prop, style) {\n if (!/^break-/.test(prop)) return false;\n\n if (prefix.js === 'Webkit') {\n var jsProp = \"WebkitColumn\" + pascalize(prop);\n return jsProp in style ? prefix.css + \"column-\" + prop : false;\n }\n\n if (prefix.js === 'Moz') {\n var _jsProp = \"page\" + pascalize(prop);\n\n return _jsProp in style ? \"page-\" + prop : false;\n }\n\n return false;\n }\n};\n\n// See https://github.com/postcss/autoprefixer/issues/324.\n\nvar inlineLogicalOld = {\n supportedProperty: function supportedProperty(prop, style) {\n if (!/^(border|margin|padding)-inline/.test(prop)) return false;\n if (prefix.js === 'Moz') return prop;\n var newProp = prop.replace('-inline', '');\n return prefix.js + pascalize(newProp) in style ? prefix.css + newProp : false;\n }\n};\n\n// Camelization is required because we can't test using.\n// CSS syntax for e.g. in FF.\n\nvar unprefixed = {\n supportedProperty: function supportedProperty(prop, style) {\n return camelize(prop) in style ? prop : false;\n }\n};\n\nvar prefixed = {\n supportedProperty: function supportedProperty(prop, style) {\n var pascalized = pascalize(prop); // Return custom CSS variable without prefixing.\n\n if (prop[0] === '-') return prop; // Return already prefixed value without prefixing.\n\n if (prop[0] === '-' && prop[1] === '-') return prop;\n if (prefix.js + pascalized in style) return prefix.css + prop; // Try webkit fallback.\n\n if (prefix.js !== 'Webkit' && \"Webkit\" + pascalized in style) return \"-webkit-\" + prop;\n return false;\n }\n};\n\n// https://caniuse.com/#search=scroll-snap\n\nvar scrollSnap = {\n supportedProperty: function supportedProperty(prop) {\n if (prop.substring(0, 11) !== 'scroll-snap') return false;\n\n if (prefix.js === 'ms') {\n return \"\" + prefix.css + prop;\n }\n\n return prop;\n }\n};\n\n// https://caniuse.com/#search=overscroll-behavior\n\nvar overscrollBehavior = {\n supportedProperty: function supportedProperty(prop) {\n if (prop !== 'overscroll-behavior') return false;\n\n if (prefix.js === 'ms') {\n return prefix.css + \"scroll-chaining\";\n }\n\n return prop;\n }\n};\n\nvar propMap = {\n 'flex-grow': 'flex-positive',\n 'flex-shrink': 'flex-negative',\n 'flex-basis': 'flex-preferred-size',\n 'justify-content': 'flex-pack',\n order: 'flex-order',\n 'align-items': 'flex-align',\n 'align-content': 'flex-line-pack' // 'align-self' is handled by 'align-self' plugin.\n\n}; // Support old flex spec from 2012.\n\nvar flex2012 = {\n supportedProperty: function supportedProperty(prop, style) {\n var newProp = propMap[prop];\n if (!newProp) return false;\n return prefix.js + pascalize(newProp) in style ? prefix.css + newProp : false;\n }\n};\n\nvar propMap$1 = {\n flex: 'box-flex',\n 'flex-grow': 'box-flex',\n 'flex-direction': ['box-orient', 'box-direction'],\n order: 'box-ordinal-group',\n 'align-items': 'box-align',\n 'flex-flow': ['box-orient', 'box-direction'],\n 'justify-content': 'box-pack'\n};\nvar propKeys = Object.keys(propMap$1);\n\nvar prefixCss = function prefixCss(p) {\n return prefix.css + p;\n}; // Support old flex spec from 2009.\n\n\nvar flex2009 = {\n supportedProperty: function supportedProperty(prop, style, _ref) {\n var multiple = _ref.multiple;\n\n if (propKeys.indexOf(prop) > -1) {\n var newProp = propMap$1[prop];\n\n if (!Array.isArray(newProp)) {\n return prefix.js + pascalize(newProp) in style ? prefix.css + newProp : false;\n }\n\n if (!multiple) return false;\n\n for (var i = 0; i < newProp.length; i++) {\n if (!(prefix.js + pascalize(newProp[0]) in style)) {\n return false;\n }\n }\n\n return newProp.map(prefixCss);\n }\n\n return false;\n }\n};\n\n// plugins = [\n// ...plugins,\n// breakPropsOld,\n// inlineLogicalOld,\n// unprefixed,\n// prefixed,\n// scrollSnap,\n// flex2012,\n// flex2009\n// ]\n// Plugins without 'noPrefill' value, going last.\n// 'flex-*' plugins should be at the bottom.\n// 'flex2009' going after 'flex2012'.\n// 'prefixed' going after 'unprefixed'\n\nvar plugins = [appearence, colorAdjust, mask, textOrientation, transform, transition, writingMode, userSelect, breakPropsOld, inlineLogicalOld, unprefixed, prefixed, scrollSnap, overscrollBehavior, flex2012, flex2009];\nvar propertyDetectors = plugins.filter(function (p) {\n return p.supportedProperty;\n}).map(function (p) {\n return p.supportedProperty;\n});\nvar noPrefill = plugins.filter(function (p) {\n return p.noPrefill;\n}).reduce(function (a, p) {\n a.push.apply(a, _toConsumableArray(p.noPrefill));\n return a;\n}, []);\n\nvar el;\nvar cache = {};\n\nif (isInBrowser) {\n el = document.createElement('p'); // We test every property on vendor prefix requirement.\n // Once tested, result is cached. It gives us up to 70% perf boost.\n // http://jsperf.com/element-style-object-access-vs-plain-object\n //\n // Prefill cache with known css properties to reduce amount of\n // properties we need to feature test at runtime.\n // http://davidwalsh.name/vendor-prefix\n\n var computed = window.getComputedStyle(document.documentElement, '');\n\n for (var key$1 in computed) {\n // eslint-disable-next-line no-restricted-globals\n if (!isNaN(key$1)) cache[computed[key$1]] = computed[key$1];\n } // Properties that cannot be correctly detected using the\n // cache prefill method.\n\n\n noPrefill.forEach(function (x) {\n return delete cache[x];\n });\n}\n/**\n * Test if a property is supported, returns supported property with vendor\n * prefix if required. Returns `false` if not supported.\n *\n * @param {String} prop dash separated\n * @param {Object} [options]\n * @return {String|Boolean}\n * @api public\n */\n\n\nfunction supportedProperty(prop, options) {\n if (options === void 0) {\n options = {};\n }\n\n // For server-side rendering.\n if (!el) return prop; // Remove cache for benchmark tests or return property from the cache.\n\n if (process.env.NODE_ENV !== 'benchmark' && cache[prop] != null) {\n return cache[prop];\n } // Check if 'transition' or 'transform' natively supported in browser.\n\n\n if (prop === 'transition' || prop === 'transform') {\n options[prop] = prop in el.style;\n } // Find a plugin for current prefix property.\n\n\n for (var i = 0; i < propertyDetectors.length; i++) {\n cache[prop] = propertyDetectors[i](prop, el.style, options); // Break loop, if value found.\n\n if (cache[prop]) break;\n } // Reset styles for current property.\n // Firefox can even throw an error for invalid properties, e.g., \"0\".\n\n\n try {\n el.style[prop] = '';\n } catch (err) {\n return false;\n }\n\n return cache[prop];\n}\n\nvar cache$1 = {};\nvar transitionProperties = {\n transition: 1,\n 'transition-property': 1,\n '-webkit-transition': 1,\n '-webkit-transition-property': 1\n};\nvar transPropsRegExp = /(^\\s*[\\w-]+)|, (\\s*[\\w-]+)(?![^()]*\\))/g;\nvar el$1;\n/**\n * Returns prefixed value transition/transform if needed.\n *\n * @param {String} match\n * @param {String} p1\n * @param {String} p2\n * @return {String}\n * @api private\n */\n\nfunction prefixTransitionCallback(match, p1, p2) {\n if (p1 === 'var') return 'var';\n if (p1 === 'all') return 'all';\n if (p2 === 'all') return ', all';\n var prefixedValue = p1 ? supportedProperty(p1) : \", \" + supportedProperty(p2);\n if (!prefixedValue) return p1 || p2;\n return prefixedValue;\n}\n\nif (isInBrowser) el$1 = document.createElement('p');\n/**\n * Returns prefixed value if needed. Returns `false` if value is not supported.\n *\n * @param {String} property\n * @param {String} value\n * @return {String|Boolean}\n * @api public\n */\n\nfunction supportedValue(property, value) {\n // For server-side rendering.\n var prefixedValue = value;\n if (!el$1 || property === 'content') return value; // It is a string or a number as a string like '1'.\n // We want only prefixable values here.\n // eslint-disable-next-line no-restricted-globals\n\n if (typeof prefixedValue !== 'string' || !isNaN(parseInt(prefixedValue, 10))) {\n return prefixedValue;\n } // Create cache key for current value.\n\n\n var cacheKey = property + prefixedValue; // Remove cache for benchmark tests or return value from cache.\n\n if (process.env.NODE_ENV !== 'benchmark' && cache$1[cacheKey] != null) {\n return cache$1[cacheKey];\n } // IE can even throw an error in some cases, for e.g. style.content = 'bar'.\n\n\n try {\n // Test value as it is.\n el$1.style[property] = prefixedValue;\n } catch (err) {\n // Return false if value not supported.\n cache$1[cacheKey] = false;\n return false;\n } // If 'transition' or 'transition-property' property.\n\n\n if (transitionProperties[property]) {\n prefixedValue = prefixedValue.replace(transPropsRegExp, prefixTransitionCallback);\n } else if (el$1.style[property] === '') {\n // Value with a vendor prefix.\n prefixedValue = prefix.css + prefixedValue; // Hardcode test to convert \"flex\" to \"-ms-flexbox\" for IE10.\n\n if (prefixedValue === '-ms-flex') el$1.style[property] = '-ms-flexbox'; // Test prefixed value.\n\n el$1.style[property] = prefixedValue; // Return false if value not supported.\n\n if (el$1.style[property] === '') {\n cache$1[cacheKey] = false;\n return false;\n }\n } // Reset styles for current property.\n\n\n el$1.style[property] = ''; // Write current value to cache.\n\n cache$1[cacheKey] = prefixedValue;\n return cache$1[cacheKey];\n}\n\nexport { prefix, supportedKeyframes, supportedProperty, supportedValue };\n","import { supportedKeyframes, supportedValue, supportedProperty } from 'css-vendor';\nimport { toCssValue } from 'jss';\n\n/**\n * Add vendor prefix to a property name when needed.\n */\n\nfunction jssVendorPrefixer() {\n function onProcessRule(rule) {\n if (rule.type === 'keyframes') {\n var atRule = rule;\n atRule.at = supportedKeyframes(atRule.at);\n }\n }\n\n function prefixStyle(style) {\n for (var prop in style) {\n var value = style[prop];\n\n if (prop === 'fallbacks' && Array.isArray(value)) {\n style[prop] = value.map(prefixStyle);\n continue;\n }\n\n var changeProp = false;\n var supportedProp = supportedProperty(prop);\n if (supportedProp && supportedProp !== prop) changeProp = true;\n var changeValue = false;\n var supportedValue$1 = supportedValue(supportedProp, toCssValue(value));\n if (supportedValue$1 && supportedValue$1 !== value) changeValue = true;\n\n if (changeProp || changeValue) {\n if (changeProp) delete style[prop];\n style[supportedProp || prop] = supportedValue$1 || value;\n }\n }\n\n return style;\n }\n\n function onProcessStyle(style, rule) {\n if (rule.type !== 'style') return style;\n return prefixStyle(style);\n }\n\n function onChangeValue(value, prop) {\n return supportedValue(prop, toCssValue(value)) || value;\n }\n\n return {\n onProcessRule: onProcessRule,\n onProcessStyle: onProcessStyle,\n onChangeValue: onChangeValue\n };\n}\n\nexport default jssVendorPrefixer;\n","/**\n * Sort props by length.\n */\nfunction jssPropsSort() {\n var sort = function sort(prop0, prop1) {\n if (prop0.length === prop1.length) {\n return prop0 > prop1 ? 1 : -1;\n }\n\n return prop0.length - prop1.length;\n };\n\n return {\n onProcessStyle: function onProcessStyle(style, rule) {\n if (rule.type !== 'style') return style;\n var newStyle = {};\n var props = Object.keys(style).sort(sort);\n\n for (var i = 0; i < props.length; i++) {\n newStyle[props[i]] = style[props[i]];\n }\n\n return newStyle;\n }\n };\n}\n\nexport default jssPropsSort;\n","import functions from 'jss-plugin-rule-value-function';\nimport global from 'jss-plugin-global';\nimport nested from 'jss-plugin-nested';\nimport camelCase from 'jss-plugin-camel-case';\nimport defaultUnit from 'jss-plugin-default-unit';\nimport vendorPrefixer from 'jss-plugin-vendor-prefixer';\nimport propsSort from 'jss-plugin-props-sort'; // Subset of jss-preset-default with only the plugins the Material-UI components are using.\n\nexport default function jssPreset() {\n return {\n plugins: [functions(), global(), nested(), camelCase(), defaultUnit(), // Disable the vendor prefixer server-side, it does nothing.\n // This way, we can get a performance boost.\n // In the documentation, we are using `autoprefixer` to solve this problem.\n typeof window === 'undefined' ? null : vendorPrefixer(), propsSort()]\n };\n}","// Used https://github.com/thinkloop/multi-key-cache as inspiration\nvar multiKeyStore = {\n set: function set(cache, key1, key2, value) {\n var subCache = cache.get(key1);\n\n if (!subCache) {\n subCache = new Map();\n cache.set(key1, subCache);\n }\n\n subCache.set(key2, value);\n },\n get: function get(cache, key1, key2) {\n var subCache = cache.get(key1);\n return subCache ? subCache.get(key2) : undefined;\n },\n delete: function _delete(cache, key1, key2) {\n var subCache = cache.get(key1);\n subCache.delete(key2);\n }\n};\nexport default multiKeyStore;","/* eslint-disable import/prefer-default-export */\n// Global index counter to preserve source order.\n// We create the style sheet during the creation of the component,\n// children are handled after the parents, so the order of style elements would be parent->child.\n// It is a problem though when a parent passes a className\n// which needs to override any child's styles.\n// StyleSheet of the child has a higher specificity, because of the source order.\n// So our solution is to render sheets them in the reverse order child->sheet, so\n// that parent has a higher specificity.\nvar indexCounter = -1e9;\nexport function increment() {\n indexCounter += 1;\n\n if (process.env.NODE_ENV !== 'production') {\n if (indexCounter >= 0) {\n console.warn(['Material-UI: You might have a memory leak.', 'The indexCounter is not supposed to grow that much.'].join('\\n'));\n }\n }\n\n return indexCounter;\n}","// We use the same empty object to ref count the styles that don't need a theme object.\nvar noopTheme = {};\nexport default noopTheme;","import _objectWithoutProperties from \"@babel/runtime/helpers/esm/objectWithoutProperties\";\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\nimport React from 'react';\nimport { getDynamicStyles } from 'jss';\nimport mergeClasses from '../mergeClasses';\nimport multiKeyStore from './multiKeyStore';\nimport useTheme from '../useTheme';\nimport { StylesContext } from '../StylesProvider';\nimport { increment } from './indexCounter';\nimport getStylesCreator from '../getStylesCreator';\nimport noopTheme from '../getStylesCreator/noopTheme';\n\nfunction getClasses(_ref, classes, Component) {\n var state = _ref.state,\n stylesOptions = _ref.stylesOptions;\n\n if (stylesOptions.disableGeneration) {\n return classes || {};\n }\n\n if (!state.cacheClasses) {\n state.cacheClasses = {\n // Cache for the finalized classes value.\n value: null,\n // Cache for the last used classes prop pointer.\n lastProp: null,\n // Cache for the last used rendered classes pointer.\n lastJSS: {}\n };\n } // Tracks if either the rendered classes or classes prop has changed,\n // requiring the generation of a new finalized classes object.\n\n\n var generate = false;\n\n if (state.classes !== state.cacheClasses.lastJSS) {\n state.cacheClasses.lastJSS = state.classes;\n generate = true;\n }\n\n if (classes !== state.cacheClasses.lastProp) {\n state.cacheClasses.lastProp = classes;\n generate = true;\n }\n\n if (generate) {\n state.cacheClasses.value = mergeClasses({\n baseClasses: state.cacheClasses.lastJSS,\n newClasses: classes,\n Component: Component\n });\n }\n\n return state.cacheClasses.value;\n}\n\nfunction attach(_ref2, props) {\n var state = _ref2.state,\n theme = _ref2.theme,\n stylesOptions = _ref2.stylesOptions,\n stylesCreator = _ref2.stylesCreator,\n name = _ref2.name;\n\n if (stylesOptions.disableGeneration) {\n return;\n }\n\n var sheetManager = multiKeyStore.get(stylesOptions.sheetsManager, stylesCreator, theme);\n\n if (!sheetManager) {\n sheetManager = {\n refs: 0,\n staticSheet: null,\n dynamicStyles: null\n };\n multiKeyStore.set(stylesOptions.sheetsManager, stylesCreator, theme, sheetManager);\n }\n\n var options = _extends({}, stylesCreator.options, stylesOptions, {\n theme: theme,\n flip: typeof stylesOptions.flip === 'boolean' ? stylesOptions.flip : theme.direction === 'rtl'\n });\n\n options.generateId = options.serverGenerateClassName || options.generateClassName;\n var sheetsRegistry = stylesOptions.sheetsRegistry;\n\n if (sheetManager.refs === 0) {\n var staticSheet;\n\n if (stylesOptions.sheetsCache) {\n staticSheet = multiKeyStore.get(stylesOptions.sheetsCache, stylesCreator, theme);\n }\n\n var styles = stylesCreator.create(theme, name);\n\n if (!staticSheet) {\n staticSheet = stylesOptions.jss.createStyleSheet(styles, _extends({\n link: false\n }, options));\n staticSheet.attach();\n\n if (stylesOptions.sheetsCache) {\n multiKeyStore.set(stylesOptions.sheetsCache, stylesCreator, theme, staticSheet);\n }\n }\n\n if (sheetsRegistry) {\n sheetsRegistry.add(staticSheet);\n }\n\n sheetManager.staticSheet = staticSheet;\n sheetManager.dynamicStyles = getDynamicStyles(styles);\n }\n\n if (sheetManager.dynamicStyles) {\n var dynamicSheet = stylesOptions.jss.createStyleSheet(sheetManager.dynamicStyles, _extends({\n link: true\n }, options));\n dynamicSheet.update(props);\n dynamicSheet.attach();\n state.dynamicSheet = dynamicSheet;\n state.classes = mergeClasses({\n baseClasses: sheetManager.staticSheet.classes,\n newClasses: dynamicSheet.classes\n });\n\n if (sheetsRegistry) {\n sheetsRegistry.add(dynamicSheet);\n }\n } else {\n state.classes = sheetManager.staticSheet.classes;\n }\n\n sheetManager.refs += 1;\n}\n\nfunction update(_ref3, props) {\n var state = _ref3.state;\n\n if (state.dynamicSheet) {\n state.dynamicSheet.update(props);\n }\n}\n\nfunction detach(_ref4) {\n var state = _ref4.state,\n theme = _ref4.theme,\n stylesOptions = _ref4.stylesOptions,\n stylesCreator = _ref4.stylesCreator;\n\n if (stylesOptions.disableGeneration) {\n return;\n }\n\n var sheetManager = multiKeyStore.get(stylesOptions.sheetsManager, stylesCreator, theme);\n sheetManager.refs -= 1;\n var sheetsRegistry = stylesOptions.sheetsRegistry;\n\n if (sheetManager.refs === 0) {\n multiKeyStore.delete(stylesOptions.sheetsManager, stylesCreator, theme);\n stylesOptions.jss.removeStyleSheet(sheetManager.staticSheet);\n\n if (sheetsRegistry) {\n sheetsRegistry.remove(sheetManager.staticSheet);\n }\n }\n\n if (state.dynamicSheet) {\n stylesOptions.jss.removeStyleSheet(state.dynamicSheet);\n\n if (sheetsRegistry) {\n sheetsRegistry.remove(state.dynamicSheet);\n }\n }\n}\n\nfunction useSynchronousEffect(func, values) {\n var key = React.useRef([]);\n var output; // Store \"generation\" key. Just returns a new object every time\n\n var currentKey = React.useMemo(function () {\n return {};\n }, values); // eslint-disable-line react-hooks/exhaustive-deps\n // \"the first render\", or \"memo dropped the value\"\n\n if (key.current !== currentKey) {\n key.current = currentKey;\n output = func();\n }\n\n React.useEffect(function () {\n return function () {\n if (output) {\n output();\n }\n };\n }, [currentKey] // eslint-disable-line react-hooks/exhaustive-deps\n );\n}\n\nexport default function makeStyles(stylesOrCreator) {\n var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n var name = options.name,\n classNamePrefixOption = options.classNamePrefix,\n Component = options.Component,\n _options$defaultTheme = options.defaultTheme,\n defaultTheme = _options$defaultTheme === void 0 ? noopTheme : _options$defaultTheme,\n stylesOptions2 = _objectWithoutProperties(options, [\"name\", \"classNamePrefix\", \"Component\", \"defaultTheme\"]);\n\n var stylesCreator = getStylesCreator(stylesOrCreator);\n var classNamePrefix = name || classNamePrefixOption || 'makeStyles';\n stylesCreator.options = {\n index: increment(),\n name: name,\n meta: classNamePrefix,\n classNamePrefix: classNamePrefix\n };\n\n var useStyles = function useStyles() {\n var props = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var theme = useTheme() || defaultTheme;\n\n var stylesOptions = _extends({}, React.useContext(StylesContext), stylesOptions2);\n\n var instance = React.useRef();\n var shouldUpdate = React.useRef();\n useSynchronousEffect(function () {\n var current = {\n name: name,\n state: {},\n stylesCreator: stylesCreator,\n stylesOptions: stylesOptions,\n theme: theme\n };\n attach(current, props);\n shouldUpdate.current = false;\n instance.current = current;\n return function () {\n detach(current);\n };\n }, [theme, stylesCreator]);\n React.useEffect(function () {\n if (shouldUpdate.current) {\n update(instance.current, props);\n }\n\n shouldUpdate.current = true;\n });\n var classes = getClasses(instance.current, props.classes, Component);\n\n if (process.env.NODE_ENV !== 'production') {\n // eslint-disable-next-line react-hooks/rules-of-hooks\n React.useDebugValue(classes);\n }\n\n return classes;\n };\n\n return useStyles;\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _typeof from \"@babel/runtime/helpers/esm/typeof\";\nimport { deepmerge } from '@material-ui/utils';\nimport noopTheme from './noopTheme';\nexport default function getStylesCreator(stylesOrCreator) {\n var themingEnabled = typeof stylesOrCreator === 'function';\n\n if (process.env.NODE_ENV !== 'production') {\n if (_typeof(stylesOrCreator) !== 'object' && !themingEnabled) {\n console.error(['Material-UI: The `styles` argument provided is invalid.', 'You need to provide a function generating the styles or a styles object.'].join('\\n'));\n }\n }\n\n return {\n create: function create(theme, name) {\n var styles;\n\n try {\n styles = themingEnabled ? stylesOrCreator(theme) : stylesOrCreator;\n } catch (err) {\n if (process.env.NODE_ENV !== 'production') {\n if (themingEnabled === true && theme === noopTheme) {\n // TODO: prepend error message/name instead\n console.error(['Material-UI: The `styles` argument provided is invalid.', 'You are providing a function without a theme in the context.', 'One of the parent elements needs to use a ThemeProvider.'].join('\\n'));\n }\n }\n\n throw err;\n }\n\n if (!name || !theme.overrides || !theme.overrides[name]) {\n return styles;\n }\n\n var overrides = theme.overrides[name];\n\n var stylesWithOverrides = _extends({}, styles);\n\n Object.keys(overrides).forEach(function (key) {\n if (process.env.NODE_ENV !== 'production') {\n if (!stylesWithOverrides[key]) {\n console.warn(['Material-UI: You are trying to override a style that does not exist.', \"Fix the `\".concat(key, \"` key of `theme.overrides.\").concat(name, \"`.\")].join('\\n'));\n }\n }\n\n stylesWithOverrides[key] = deepmerge(stylesWithOverrides[key], overrides[key]);\n });\n return stylesWithOverrides;\n },\n options: {}\n };\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport { getDisplayName } from '@material-ui/utils';\nexport default function mergeClasses() {\n var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n var baseClasses = options.baseClasses,\n newClasses = options.newClasses,\n Component = options.Component;\n\n if (!newClasses) {\n return baseClasses;\n }\n\n var nextClasses = _extends({}, baseClasses);\n\n if (process.env.NODE_ENV !== 'production') {\n if (typeof newClasses === 'string') {\n console.error([\"Material-UI: The value `\".concat(newClasses, \"` \") + \"provided to the classes prop of \".concat(getDisplayName(Component), \" is incorrect.\"), 'You might want to use the className prop instead.'].join('\\n'));\n return baseClasses;\n }\n }\n\n Object.keys(newClasses).forEach(function (key) {\n if (process.env.NODE_ENV !== 'production') {\n if (!baseClasses[key] && newClasses[key]) {\n console.error([\"Material-UI: The key `\".concat(key, \"` \") + \"provided to the classes prop is not implemented in \".concat(getDisplayName(Component), \".\"), \"You can only override one of the following: \".concat(Object.keys(baseClasses).join(','), \".\")].join('\\n'));\n }\n\n if (newClasses[key] && typeof newClasses[key] !== 'string') {\n console.error([\"Material-UI: The key `\".concat(key, \"` \") + \"provided to the classes prop is not valid for \".concat(getDisplayName(Component), \".\"), \"You need to provide a non empty string instead of: \".concat(newClasses[key], \".\")].join('\\n'));\n }\n }\n\n if (newClasses[key]) {\n nextClasses[key] = \"\".concat(baseClasses[key], \" \").concat(newClasses[key]);\n }\n });\n return nextClasses;\n}","import React from 'react';\nvar ThemeContext = React.createContext(null);\n\nif (process.env.NODE_ENV !== 'production') {\n ThemeContext.displayName = 'ThemeContext';\n}\n\nexport default ThemeContext;","import React from 'react';\nimport ThemeContext from './ThemeContext';\nexport default function useTheme() {\n var theme = React.useContext(ThemeContext);\n\n if (process.env.NODE_ENV !== 'production') {\n // eslint-disable-next-line react-hooks/rules-of-hooks\n React.useDebugValue(theme);\n }\n\n return theme;\n}","import _toConsumableArray from \"@babel/runtime/helpers/esm/toConsumableArray\";\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _typeof from \"@babel/runtime/helpers/esm/typeof\";\nimport PropTypes from 'prop-types';\nimport merge from './merge'; // The breakpoint **start** at this value.\n// For instance with the first breakpoint xs: [xs, sm[.\n\nvar values = {\n xs: 0,\n sm: 600,\n md: 960,\n lg: 1280,\n xl: 1920\n};\nvar defaultBreakpoints = {\n // Sorted ASC by size. That's important.\n // It can't be configured as it's used statically for propTypes.\n keys: ['xs', 'sm', 'md', 'lg', 'xl'],\n up: function up(key) {\n return \"@media (min-width:\".concat(values[key], \"px)\");\n }\n};\nexport function handleBreakpoints(props, propValue, styleFromPropValue) {\n if (process.env.NODE_ENV !== 'production') {\n if (!props.theme) {\n console.error('Material-UI: You are calling a style function without a theme value.');\n }\n }\n\n if (Array.isArray(propValue)) {\n var themeBreakpoints = props.theme.breakpoints || defaultBreakpoints;\n return propValue.reduce(function (acc, item, index) {\n acc[themeBreakpoints.up(themeBreakpoints.keys[index])] = styleFromPropValue(propValue[index]);\n return acc;\n }, {});\n }\n\n if (_typeof(propValue) === 'object') {\n var _themeBreakpoints = props.theme.breakpoints || defaultBreakpoints;\n\n return Object.keys(propValue).reduce(function (acc, breakpoint) {\n acc[_themeBreakpoints.up(breakpoint)] = styleFromPropValue(propValue[breakpoint]);\n return acc;\n }, {});\n }\n\n var output = styleFromPropValue(propValue);\n return output;\n}\n\nfunction breakpoints(styleFunction) {\n var newStyleFunction = function newStyleFunction(props) {\n var base = styleFunction(props);\n var themeBreakpoints = props.theme.breakpoints || defaultBreakpoints;\n var extended = themeBreakpoints.keys.reduce(function (acc, key) {\n if (props[key]) {\n acc = acc || {};\n acc[themeBreakpoints.up(key)] = styleFunction(_extends({\n theme: props.theme\n }, props[key]));\n }\n\n return acc;\n }, null);\n return merge(base, extended);\n };\n\n newStyleFunction.propTypes = process.env.NODE_ENV !== 'production' ? _extends({}, styleFunction.propTypes, {\n xs: PropTypes.object,\n sm: PropTypes.object,\n md: PropTypes.object,\n lg: PropTypes.object,\n xl: PropTypes.object\n }) : {};\n newStyleFunction.filterProps = ['xs', 'sm', 'md', 'lg', 'xl'].concat(_toConsumableArray(styleFunction.filterProps));\n return newStyleFunction;\n}\n\nexport default breakpoints;","import { deepmerge } from '@material-ui/utils';\n\nfunction merge(acc, item) {\n if (!item) {\n return acc;\n }\n\n return deepmerge(acc, item, {\n clone: false // No need to clone deep, it's way faster.\n\n });\n}\n\nexport default merge;","import arrayWithHoles from \"./arrayWithHoles.js\";\nimport iterableToArrayLimit from \"./iterableToArrayLimit.js\";\nimport unsupportedIterableToArray from \"./unsupportedIterableToArray.js\";\nimport nonIterableRest from \"./nonIterableRest.js\";\nexport default function _slicedToArray(arr, i) {\n return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || unsupportedIterableToArray(arr, i) || nonIterableRest();\n}","export default function _arrayWithHoles(arr) {\n if (Array.isArray(arr)) return arr;\n}","export default function _iterableToArrayLimit(r, l) {\n var t = null == r ? null : \"undefined\" != typeof Symbol && r[Symbol.iterator] || r[\"@@iterator\"];\n if (null != t) {\n var e,\n n,\n i,\n u,\n a = [],\n f = !0,\n o = !1;\n try {\n if (i = (t = t.call(r)).next, 0 === l) {\n if (Object(t) !== t) return;\n f = !1;\n } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0);\n } catch (r) {\n o = !0, n = r;\n } finally {\n try {\n if (!f && null != t[\"return\"] && (u = t[\"return\"](), Object(u) !== u)) return;\n } finally {\n if (o) throw n;\n }\n }\n return a;\n }\n}","export default function _nonIterableRest() {\n throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}","import _slicedToArray from \"@babel/runtime/helpers/esm/slicedToArray\";\nimport responsivePropType from './responsivePropType';\nimport { handleBreakpoints } from './breakpoints';\nimport merge from './merge';\nimport memoize from './memoize';\nvar properties = {\n m: 'margin',\n p: 'padding'\n};\nvar directions = {\n t: 'Top',\n r: 'Right',\n b: 'Bottom',\n l: 'Left',\n x: ['Left', 'Right'],\n y: ['Top', 'Bottom']\n};\nvar aliases = {\n marginX: 'mx',\n marginY: 'my',\n paddingX: 'px',\n paddingY: 'py'\n}; // memoize() impact:\n// From 300,000 ops/sec\n// To 350,000 ops/sec\n\nvar getCssProperties = memoize(function (prop) {\n // It's not a shorthand notation.\n if (prop.length > 2) {\n if (aliases[prop]) {\n prop = aliases[prop];\n } else {\n return [prop];\n }\n }\n\n var _prop$split = prop.split(''),\n _prop$split2 = _slicedToArray(_prop$split, 2),\n a = _prop$split2[0],\n b = _prop$split2[1];\n\n var property = properties[a];\n var direction = directions[b] || '';\n return Array.isArray(direction) ? direction.map(function (dir) {\n return property + dir;\n }) : [property + direction];\n});\nvar spacingKeys = ['m', 'mt', 'mr', 'mb', 'ml', 'mx', 'my', 'p', 'pt', 'pr', 'pb', 'pl', 'px', 'py', 'margin', 'marginTop', 'marginRight', 'marginBottom', 'marginLeft', 'marginX', 'marginY', 'padding', 'paddingTop', 'paddingRight', 'paddingBottom', 'paddingLeft', 'paddingX', 'paddingY'];\nexport function createUnarySpacing(theme) {\n var themeSpacing = theme.spacing || 8;\n\n if (typeof themeSpacing === 'number') {\n return function (abs) {\n if (process.env.NODE_ENV !== 'production') {\n if (typeof abs !== 'number') {\n console.error(\"Material-UI: Expected spacing argument to be a number, got \".concat(abs, \".\"));\n }\n }\n\n return themeSpacing * abs;\n };\n }\n\n if (Array.isArray(themeSpacing)) {\n return function (abs) {\n if (process.env.NODE_ENV !== 'production') {\n if (abs > themeSpacing.length - 1) {\n console.error([\"Material-UI: The value provided (\".concat(abs, \") overflows.\"), \"The supported values are: \".concat(JSON.stringify(themeSpacing), \".\"), \"\".concat(abs, \" > \").concat(themeSpacing.length - 1, \", you need to add the missing values.\")].join('\\n'));\n }\n }\n\n return themeSpacing[abs];\n };\n }\n\n if (typeof themeSpacing === 'function') {\n return themeSpacing;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n console.error([\"Material-UI: The `theme.spacing` value (\".concat(themeSpacing, \") is invalid.\"), 'It should be a number, an array or a function.'].join('\\n'));\n }\n\n return function () {\n return undefined;\n };\n}\n\nfunction getValue(transformer, propValue) {\n if (typeof propValue === 'string' || propValue == null) {\n return propValue;\n }\n\n var abs = Math.abs(propValue);\n var transformed = transformer(abs);\n\n if (propValue >= 0) {\n return transformed;\n }\n\n if (typeof transformed === 'number') {\n return -transformed;\n }\n\n return \"-\".concat(transformed);\n}\n\nfunction getStyleFromPropValue(cssProperties, transformer) {\n return function (propValue) {\n return cssProperties.reduce(function (acc, cssProperty) {\n acc[cssProperty] = getValue(transformer, propValue);\n return acc;\n }, {});\n };\n}\n\nfunction spacing(props) {\n var theme = props.theme;\n var transformer = createUnarySpacing(theme);\n return Object.keys(props).map(function (prop) {\n // Using a hash computation over an array iteration could be faster, but with only 28 items,\n // it's doesn't worth the bundle size.\n if (spacingKeys.indexOf(prop) === -1) {\n return null;\n }\n\n var cssProperties = getCssProperties(prop);\n var styleFromPropValue = getStyleFromPropValue(cssProperties, transformer);\n var propValue = props[prop];\n return handleBreakpoints(props, propValue, styleFromPropValue);\n }).reduce(merge, {});\n}\n\nspacing.propTypes = process.env.NODE_ENV !== 'production' ? spacingKeys.reduce(function (obj, key) {\n obj[key] = responsivePropType;\n return obj;\n}, {}) : {};\nspacing.filterProps = spacingKeys;\nexport default spacing;","export default function memoize(fn) {\n var cache = {};\n return function (arg) {\n if (cache[arg] === undefined) {\n cache[arg] = fn(arg);\n }\n\n return cache[arg];\n };\n}","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","export default function _typeof(o) {\n \"@babel/helpers - typeof\";\n\n return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (o) {\n return typeof o;\n } : function (o) {\n return o && \"function\" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? \"symbol\" : typeof o;\n }, _typeof(o);\n}","import _extends from \"@babel/runtime/helpers/esm/extends\";\nimport _typeof from \"@babel/runtime/helpers/esm/typeof\";\nexport function isPlainObject(item) {\n return item && _typeof(item) === 'object' && item.constructor === Object;\n}\nexport default function deepmerge(target, source) {\n var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {\n clone: true\n };\n var output = options.clone ? _extends({}, target) : target;\n\n if (isPlainObject(target) && isPlainObject(source)) {\n Object.keys(source).forEach(function (key) {\n // Avoid prototype pollution\n if (key === '__proto__') {\n return;\n }\n\n if (isPlainObject(source[key]) && key in target) {\n output[key] = deepmerge(target[key], source[key], options);\n } else {\n output[key] = source[key];\n }\n });\n }\n\n return output;\n}","/**\n * WARNING: Don't import this directly.\n * Use `MuiError` from `@material-ui/utils/macros/MuiError.macro` instead.\n * @param {number} code\n */\nexport default function formatMuiErrorMessage(code) {\n // Apply babel-plugin-transform-template-literals in loose mode\n // loose mode is safe iff we're concatenating primitives\n // see https://babeljs.io/docs/en/babel-plugin-transform-template-literals#loose\n\n /* eslint-disable prefer-template */\n var url = 'https://mui.com/production-error/?code=' + code;\n\n for (var i = 1; i < arguments.length; i += 1) {\n // rest params over-transpile for this case\n // eslint-disable-next-line prefer-rest-params\n url += '&args[]=' + encodeURIComponent(arguments[i]);\n }\n\n return 'Minified Material-UI error #' + code + '; visit ' + url + ' for the full message.';\n /* eslint-enable prefer-template */\n}","import { useState } from 'react';\n/**\n * A convenience hook around `useState` designed to be paired with\n * the component [callback ref](https://reactjs.org/docs/refs-and-the-dom.html#callback-refs) api.\n * Callback refs are useful over `useRef()` when you need to respond to the ref being set\n * instead of lazily accessing it in an effect.\n *\n * ```ts\n * const [element, attachRef] = useCallbackRef()\n *\n * useEffect(() => {\n * if (!element) return\n *\n * const calendar = new FullCalendar.Calendar(element)\n *\n * return () => {\n * calendar.destroy()\n * }\n * }, [element])\n *\n * return
\n * ```\n *\n * @category refs\n */\n\nexport default function useCallbackRef() {\n return useState(null);\n}","import { useEffect, useRef } from 'react';\n/**\n * Creates a `Ref` whose value is updated in an effect, ensuring the most recent\n * value is the one rendered with. Generally only required for Concurrent mode usage\n * where previous work in `render()` may be discarded befor being used.\n *\n * This is safe to access in an event handler.\n *\n * @param value The `Ref` value\n */\n\nfunction useCommittedRef(value) {\n var ref = useRef(value);\n useEffect(function () {\n ref.current = value;\n }, [value]);\n return ref;\n}\n\nexport default useCommittedRef;","import { useCallback } from 'react';\nimport useCommittedRef from './useCommittedRef';\nexport default function useEventCallback(fn) {\n var ref = useCommittedRef(fn);\n return useCallback(function () {\n return ref.current && ref.current.apply(ref, arguments);\n }, [ref]);\n}","import { useReducer } from 'react';\n/**\n * Returns a function that triggers a component update. the hook equivalent to\n * `this.forceUpdate()` in a class component. In most cases using a state value directly\n * is preferable but may be required in some advanced usages of refs for interop or\n * when direct DOM manipulation is required.\n *\n * ```ts\n * const forceUpdate = useForceUpdate();\n *\n * const updateOnClick = useCallback(() => {\n * forceUpdate()\n * }, [forceUpdate])\n *\n * return Hi there \n * ```\n */\n\nexport default function useForceUpdate() {\n // The toggling state value is designed to defeat React optimizations for skipping\n // updates when they are stricting equal to the last state value\n var _useReducer = useReducer(function (state) {\n return !state;\n }, false),\n dispatch = _useReducer[1];\n\n return dispatch;\n}","import { useMemo } from 'react';\n\nvar toFnRef = function toFnRef(ref) {\n return !ref || typeof ref === 'function' ? ref : function (value) {\n ref.current = value;\n };\n};\n\nexport function mergeRefs(refA, refB) {\n var a = toFnRef(refA);\n var b = toFnRef(refB);\n return function (value) {\n if (a) a(value);\n if (b) b(value);\n };\n}\n/**\n * Create and returns a single callback ref composed from two other Refs.\n *\n * ```tsx\n * const Button = React.forwardRef((props, ref) => {\n * const [element, attachRef] = useCallbackRef();\n * const mergedRef = useMergedRefs(ref, attachRef);\n *\n * return 0;\n if (shouldSetUp && !_this.isSetUp) {\n _this.backend.setup();\n _this.isSetUp = true;\n }\n else if (!shouldSetUp && _this.isSetUp) {\n _this.backend.teardown();\n _this.isSetUp = false;\n }\n };\n var store = makeStoreInstance(debugMode);\n this.store = store;\n this.monitor = new DragDropMonitorImpl_1.default(store, new HandlerRegistryImpl_1.default(store));\n this.backend = createBackend(this);\n store.subscribe(this.handleRefCountChange);\n }\n DragDropManagerImpl.prototype.getContext = function () {\n return this.context;\n };\n DragDropManagerImpl.prototype.getMonitor = function () {\n return this.monitor;\n };\n DragDropManagerImpl.prototype.getBackend = function () {\n return this.backend;\n };\n DragDropManagerImpl.prototype.getRegistry = function () {\n return this.monitor.registry;\n };\n DragDropManagerImpl.prototype.getActions = function () {\n var manager = this;\n var dispatch = this.store.dispatch;\n function bindActionCreator(actionCreator) {\n return function () {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var action = actionCreator.apply(manager, args);\n if (typeof action !== 'undefined') {\n dispatch(action);\n }\n };\n }\n var actions = dragDrop_1.default(this);\n return Object.keys(actions).reduce(function (boundActions, key) {\n var action = actions[key];\n boundActions[key] = bindActionCreator(action);\n return boundActions;\n }, {});\n };\n DragDropManagerImpl.prototype.dispatch = function (action) {\n this.store.dispatch(action);\n };\n return DragDropManagerImpl;\n}());\nexports.default = DragDropManagerImpl;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar matchesType_1 = require(\"./utils/matchesType\");\nvar coords_1 = require(\"./utils/coords\");\nvar dirtiness_1 = require(\"./utils/dirtiness\");\nvar invariant = require('invariant');\nvar DragDropMonitorImpl = /** @class */ (function () {\n function DragDropMonitorImpl(store, registry) {\n this.store = store;\n this.registry = registry;\n }\n DragDropMonitorImpl.prototype.subscribeToStateChange = function (listener, options) {\n var _this = this;\n if (options === void 0) { options = { handlerIds: undefined }; }\n var handlerIds = options.handlerIds;\n invariant(typeof listener === 'function', 'listener must be a function.');\n invariant(typeof handlerIds === 'undefined' || Array.isArray(handlerIds), 'handlerIds, when specified, must be an array of strings.');\n var prevStateId = this.store.getState().stateId;\n var handleChange = function () {\n var state = _this.store.getState();\n var currentStateId = state.stateId;\n try {\n var canSkipListener = currentStateId === prevStateId ||\n (currentStateId === prevStateId + 1 &&\n !dirtiness_1.areDirty(state.dirtyHandlerIds, handlerIds));\n if (!canSkipListener) {\n listener();\n }\n }\n finally {\n prevStateId = currentStateId;\n }\n };\n return this.store.subscribe(handleChange);\n };\n DragDropMonitorImpl.prototype.subscribeToOffsetChange = function (listener) {\n var _this = this;\n invariant(typeof listener === 'function', 'listener must be a function.');\n var previousState = this.store.getState().dragOffset;\n var handleChange = function () {\n var nextState = _this.store.getState().dragOffset;\n if (nextState === previousState) {\n return;\n }\n previousState = nextState;\n listener();\n };\n return this.store.subscribe(handleChange);\n };\n DragDropMonitorImpl.prototype.canDragSource = function (sourceId) {\n if (!sourceId) {\n return false;\n }\n var source = this.registry.getSource(sourceId);\n invariant(source, 'Expected to find a valid source.');\n if (this.isDragging()) {\n return false;\n }\n return source.canDrag(this, sourceId);\n };\n DragDropMonitorImpl.prototype.canDropOnTarget = function (targetId) {\n // undefined on initial render\n if (!targetId) {\n return false;\n }\n var target = this.registry.getTarget(targetId);\n invariant(target, 'Expected to find a valid target.');\n if (!this.isDragging() || this.didDrop()) {\n return false;\n }\n var targetType = this.registry.getTargetType(targetId);\n var draggedItemType = this.getItemType();\n return (matchesType_1.default(targetType, draggedItemType) && target.canDrop(this, targetId));\n };\n DragDropMonitorImpl.prototype.isDragging = function () {\n return Boolean(this.getItemType());\n };\n DragDropMonitorImpl.prototype.isDraggingSource = function (sourceId) {\n // undefined on initial render\n if (!sourceId) {\n return false;\n }\n var source = this.registry.getSource(sourceId, true);\n invariant(source, 'Expected to find a valid source.');\n if (!this.isDragging() || !this.isSourcePublic()) {\n return false;\n }\n var sourceType = this.registry.getSourceType(sourceId);\n var draggedItemType = this.getItemType();\n if (sourceType !== draggedItemType) {\n return false;\n }\n return source.isDragging(this, sourceId);\n };\n DragDropMonitorImpl.prototype.isOverTarget = function (targetId, options) {\n if (options === void 0) { options = { shallow: false }; }\n // undefined on initial render\n if (!targetId) {\n return false;\n }\n var shallow = options.shallow;\n if (!this.isDragging()) {\n return false;\n }\n var targetType = this.registry.getTargetType(targetId);\n var draggedItemType = this.getItemType();\n if (draggedItemType && !matchesType_1.default(targetType, draggedItemType)) {\n return false;\n }\n var targetIds = this.getTargetIds();\n if (!targetIds.length) {\n return false;\n }\n var index = targetIds.indexOf(targetId);\n if (shallow) {\n return index === targetIds.length - 1;\n }\n else {\n return index > -1;\n }\n };\n DragDropMonitorImpl.prototype.getItemType = function () {\n return this.store.getState().dragOperation.itemType;\n };\n DragDropMonitorImpl.prototype.getItem = function () {\n return this.store.getState().dragOperation.item;\n };\n DragDropMonitorImpl.prototype.getSourceId = function () {\n return this.store.getState().dragOperation.sourceId;\n };\n DragDropMonitorImpl.prototype.getTargetIds = function () {\n return this.store.getState().dragOperation.targetIds;\n };\n DragDropMonitorImpl.prototype.getDropResult = function () {\n return this.store.getState().dragOperation.dropResult;\n };\n DragDropMonitorImpl.prototype.didDrop = function () {\n return this.store.getState().dragOperation.didDrop;\n };\n DragDropMonitorImpl.prototype.isSourcePublic = function () {\n return this.store.getState().dragOperation.isSourcePublic;\n };\n DragDropMonitorImpl.prototype.getInitialClientOffset = function () {\n return this.store.getState().dragOffset.initialClientOffset;\n };\n DragDropMonitorImpl.prototype.getInitialSourceClientOffset = function () {\n return this.store.getState().dragOffset.initialSourceClientOffset;\n };\n DragDropMonitorImpl.prototype.getClientOffset = function () {\n return this.store.getState().dragOffset.clientOffset;\n };\n DragDropMonitorImpl.prototype.getSourceClientOffset = function () {\n return coords_1.getSourceClientOffset(this.store.getState().dragOffset);\n };\n DragDropMonitorImpl.prototype.getDifferenceFromInitialOffset = function () {\n return coords_1.getDifferenceFromInitialOffset(this.store.getState().dragOffset);\n };\n return DragDropMonitorImpl;\n}());\nexports.default = DragDropMonitorImpl;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar registry_1 = require(\"./actions/registry\");\nvar getNextUniqueId_1 = require(\"./utils/getNextUniqueId\");\nvar interfaces_1 = require(\"./interfaces\");\nvar contracts_1 = require(\"./contracts\");\nvar invariant = require('invariant');\nvar asap = require('asap');\nfunction getNextHandlerId(role) {\n var id = getNextUniqueId_1.default().toString();\n switch (role) {\n case interfaces_1.HandlerRole.SOURCE:\n return \"S\" + id;\n case interfaces_1.HandlerRole.TARGET:\n return \"T\" + id;\n default:\n throw new Error(\"Unknown Handler Role: \" + role);\n }\n}\nfunction parseRoleFromHandlerId(handlerId) {\n switch (handlerId[0]) {\n case 'S':\n return interfaces_1.HandlerRole.SOURCE;\n case 'T':\n return interfaces_1.HandlerRole.TARGET;\n default:\n invariant(false, \"Cannot parse handler ID: \" + handlerId);\n }\n}\nfunction mapContainsValue(map, searchValue) {\n var entries = map.entries();\n var isDone = false;\n do {\n var _a = entries.next(), done = _a.done, _b = _a.value, value = _b[1];\n if (value === searchValue) {\n return true;\n }\n isDone = done;\n } while (!isDone);\n return false;\n}\nvar HandlerRegistryImpl = /** @class */ (function () {\n function HandlerRegistryImpl(store) {\n this.store = store;\n this.types = new Map();\n this.dragSources = new Map();\n this.dropTargets = new Map();\n this.pinnedSourceId = null;\n this.pinnedSource = null;\n }\n HandlerRegistryImpl.prototype.addSource = function (type, source) {\n contracts_1.validateType(type);\n contracts_1.validateSourceContract(source);\n var sourceId = this.addHandler(interfaces_1.HandlerRole.SOURCE, type, source);\n this.store.dispatch(registry_1.addSource(sourceId));\n return sourceId;\n };\n HandlerRegistryImpl.prototype.addTarget = function (type, target) {\n contracts_1.validateType(type, true);\n contracts_1.validateTargetContract(target);\n var targetId = this.addHandler(interfaces_1.HandlerRole.TARGET, type, target);\n this.store.dispatch(registry_1.addTarget(targetId));\n return targetId;\n };\n HandlerRegistryImpl.prototype.containsHandler = function (handler) {\n return (mapContainsValue(this.dragSources, handler) ||\n mapContainsValue(this.dropTargets, handler));\n };\n HandlerRegistryImpl.prototype.getSource = function (sourceId, includePinned) {\n if (includePinned === void 0) { includePinned = false; }\n invariant(this.isSourceId(sourceId), 'Expected a valid source ID.');\n var isPinned = includePinned && sourceId === this.pinnedSourceId;\n var source = isPinned ? this.pinnedSource : this.dragSources.get(sourceId);\n return source;\n };\n HandlerRegistryImpl.prototype.getTarget = function (targetId) {\n invariant(this.isTargetId(targetId), 'Expected a valid target ID.');\n return this.dropTargets.get(targetId);\n };\n HandlerRegistryImpl.prototype.getSourceType = function (sourceId) {\n invariant(this.isSourceId(sourceId), 'Expected a valid source ID.');\n return this.types.get(sourceId);\n };\n HandlerRegistryImpl.prototype.getTargetType = function (targetId) {\n invariant(this.isTargetId(targetId), 'Expected a valid target ID.');\n return this.types.get(targetId);\n };\n HandlerRegistryImpl.prototype.isSourceId = function (handlerId) {\n var role = parseRoleFromHandlerId(handlerId);\n return role === interfaces_1.HandlerRole.SOURCE;\n };\n HandlerRegistryImpl.prototype.isTargetId = function (handlerId) {\n var role = parseRoleFromHandlerId(handlerId);\n return role === interfaces_1.HandlerRole.TARGET;\n };\n HandlerRegistryImpl.prototype.removeSource = function (sourceId) {\n var _this = this;\n invariant(this.getSource(sourceId), 'Expected an existing source.');\n this.store.dispatch(registry_1.removeSource(sourceId));\n asap(function () {\n _this.dragSources.delete(sourceId);\n _this.types.delete(sourceId);\n });\n };\n HandlerRegistryImpl.prototype.removeTarget = function (targetId) {\n invariant(this.getTarget(targetId), 'Expected an existing target.');\n this.store.dispatch(registry_1.removeTarget(targetId));\n this.dropTargets.delete(targetId);\n this.types.delete(targetId);\n };\n HandlerRegistryImpl.prototype.pinSource = function (sourceId) {\n var source = this.getSource(sourceId);\n invariant(source, 'Expected an existing source.');\n this.pinnedSourceId = sourceId;\n this.pinnedSource = source;\n };\n HandlerRegistryImpl.prototype.unpinSource = function () {\n invariant(this.pinnedSource, 'No source is pinned at the time.');\n this.pinnedSourceId = null;\n this.pinnedSource = null;\n };\n HandlerRegistryImpl.prototype.addHandler = function (role, type, handler) {\n var id = getNextHandlerId(role);\n this.types.set(id, type);\n if (role === interfaces_1.HandlerRole.SOURCE) {\n this.dragSources.set(id, handler);\n }\n else if (role === interfaces_1.HandlerRole.TARGET) {\n this.dropTargets.set(id, handler);\n }\n return id;\n };\n return HandlerRegistryImpl;\n}());\nexports.default = HandlerRegistryImpl;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar setClientOffset_1 = require(\"./local/setClientOffset\");\nvar discount_lodash_1 = require(\"../../utils/discount_lodash\");\nvar invariant = require('invariant');\nvar types_1 = require(\"./types\");\nvar ResetCoordinatesAction = {\n type: types_1.INIT_COORDS,\n payload: {\n clientOffset: null,\n sourceClientOffset: null,\n },\n};\nfunction createBeginDrag(manager) {\n return function beginDrag(sourceIds, options) {\n if (sourceIds === void 0) { sourceIds = []; }\n if (options === void 0) { options = {\n publishSource: true,\n }; }\n var _a = options.publishSource, publishSource = _a === void 0 ? true : _a, clientOffset = options.clientOffset, getSourceClientOffset = options.getSourceClientOffset;\n var monitor = manager.getMonitor();\n var registry = manager.getRegistry();\n // Initialize the coordinates using the client offset\n manager.dispatch(setClientOffset_1.setClientOffset(clientOffset));\n verifyInvariants(sourceIds, monitor, registry);\n // Get the draggable source\n var sourceId = getDraggableSource(sourceIds, monitor);\n if (sourceId === null) {\n manager.dispatch(ResetCoordinatesAction);\n return;\n }\n // Get the source client offset\n var sourceClientOffset = null;\n if (clientOffset) {\n verifyGetSourceClientOffsetIsFunction(getSourceClientOffset);\n sourceClientOffset = getSourceClientOffset(sourceId);\n }\n // Initialize the full coordinates\n manager.dispatch(setClientOffset_1.setClientOffset(clientOffset, sourceClientOffset));\n var source = registry.getSource(sourceId);\n var item = source.beginDrag(monitor, sourceId);\n verifyItemIsObject(item);\n registry.pinSource(sourceId);\n var itemType = registry.getSourceType(sourceId);\n return {\n type: types_1.BEGIN_DRAG,\n payload: {\n itemType: itemType,\n item: item,\n sourceId: sourceId,\n clientOffset: clientOffset || null,\n sourceClientOffset: sourceClientOffset || null,\n isSourcePublic: !!publishSource,\n },\n };\n };\n}\nexports.default = createBeginDrag;\nfunction verifyInvariants(sourceIds, monitor, registry) {\n invariant(!monitor.isDragging(), 'Cannot call beginDrag while dragging.');\n for (var _i = 0, sourceIds_1 = sourceIds; _i < sourceIds_1.length; _i++) {\n var s = sourceIds_1[_i];\n invariant(registry.getSource(s), 'Expected sourceIds to be registered.');\n }\n}\nfunction verifyGetSourceClientOffsetIsFunction(getSourceClientOffset) {\n invariant(typeof getSourceClientOffset === 'function', 'When clientOffset is provided, getSourceClientOffset must be a function.');\n}\nfunction verifyItemIsObject(item) {\n invariant(discount_lodash_1.isObject(item), 'Item must be an object.');\n}\nfunction getDraggableSource(sourceIds, monitor) {\n var sourceId = null;\n for (var i = sourceIds.length - 1; i >= 0; i--) {\n if (monitor.canDragSource(sourceIds[i])) {\n sourceId = sourceIds[i];\n break;\n }\n }\n return sourceId;\n}\n","\"use strict\";\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar types_1 = require(\"./types\");\nvar discount_lodash_1 = require(\"../../utils/discount_lodash\");\nvar invariant = require('invariant');\nfunction createDrop(manager) {\n return function drop(options) {\n if (options === void 0) { options = {}; }\n var monitor = manager.getMonitor();\n var registry = manager.getRegistry();\n verifyInvariants(monitor);\n var targetIds = getDroppableTargets(monitor);\n // Multiple actions are dispatched here, which is why this doesn't return an action\n targetIds.forEach(function (targetId, index) {\n var dropResult = determineDropResult(targetId, index, registry, monitor);\n var action = {\n type: types_1.DROP,\n payload: {\n dropResult: __assign({}, options, dropResult),\n },\n };\n manager.dispatch(action);\n });\n };\n}\nexports.default = createDrop;\nfunction verifyInvariants(monitor) {\n invariant(monitor.isDragging(), 'Cannot call drop while not dragging.');\n invariant(!monitor.didDrop(), 'Cannot call drop twice during one drag operation.');\n}\nfunction determineDropResult(targetId, index, registry, monitor) {\n var target = registry.getTarget(targetId);\n var dropResult = target ? target.drop(monitor, targetId) : undefined;\n verifyDropResultType(dropResult);\n if (typeof dropResult === 'undefined') {\n dropResult = index === 0 ? {} : monitor.getDropResult();\n }\n return dropResult;\n}\nfunction verifyDropResultType(dropResult) {\n invariant(typeof dropResult === 'undefined' || discount_lodash_1.isObject(dropResult), 'Drop result must either be an object or undefined.');\n}\nfunction getDroppableTargets(monitor) {\n var targetIds = monitor\n .getTargetIds()\n .filter(monitor.canDropOnTarget, monitor);\n targetIds.reverse();\n return targetIds;\n}\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar types_1 = require(\"./types\");\nvar invariant = require('invariant');\nfunction createEndDrag(manager) {\n return function endDrag() {\n var monitor = manager.getMonitor();\n var registry = manager.getRegistry();\n verifyIsDragging(monitor);\n var sourceId = monitor.getSourceId();\n var source = registry.getSource(sourceId, true);\n source.endDrag(monitor, sourceId);\n registry.unpinSource();\n return { type: types_1.END_DRAG };\n };\n}\nexports.default = createEndDrag;\nfunction verifyIsDragging(monitor) {\n invariant(monitor.isDragging(), 'Cannot call endDrag while not dragging.');\n}\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar matchesType_1 = require(\"../../utils/matchesType\");\nvar types_1 = require(\"./types\");\nvar invariant = require('invariant');\nfunction createHover(manager) {\n return function hover(targetIdsArg, _a) {\n var clientOffset = (_a === void 0 ? {} : _a).clientOffset;\n verifyTargetIdsIsArray(targetIdsArg);\n var targetIds = targetIdsArg.slice(0);\n var monitor = manager.getMonitor();\n var registry = manager.getRegistry();\n checkInvariants(targetIds, monitor, registry);\n var draggedItemType = monitor.getItemType();\n removeNonMatchingTargetIds(targetIds, registry, draggedItemType);\n hoverAllTargets(targetIds, monitor, registry);\n return {\n type: types_1.HOVER,\n payload: {\n targetIds: targetIds,\n clientOffset: clientOffset || null,\n },\n };\n };\n}\nexports.default = createHover;\nfunction verifyTargetIdsIsArray(targetIdsArg) {\n invariant(Array.isArray(targetIdsArg), 'Expected targetIds to be an array.');\n}\nfunction checkInvariants(targetIds, monitor, registry) {\n invariant(monitor.isDragging(), 'Cannot call hover while not dragging.');\n invariant(!monitor.didDrop(), 'Cannot call hover after drop.');\n for (var i = 0; i < targetIds.length; i++) {\n var targetId = targetIds[i];\n invariant(targetIds.lastIndexOf(targetId) === i, 'Expected targetIds to be unique in the passed array.');\n var target = registry.getTarget(targetId);\n invariant(target, 'Expected targetIds to be registered.');\n }\n}\nfunction removeNonMatchingTargetIds(targetIds, registry, draggedItemType) {\n // Remove those targetIds that don't match the targetType. This\n // fixes shallow isOver which would only be non-shallow because of\n // non-matching targets.\n for (var i = targetIds.length - 1; i >= 0; i--) {\n var targetId = targetIds[i];\n var targetType = registry.getTargetType(targetId);\n if (!matchesType_1.default(targetType, draggedItemType)) {\n targetIds.splice(i, 1);\n }\n }\n}\nfunction hoverAllTargets(targetIds, monitor, registry) {\n // Finally call hover on all matching targets.\n for (var _i = 0, targetIds_1 = targetIds; _i < targetIds_1.length; _i++) {\n var targetId = targetIds_1[_i];\n var target = registry.getTarget(targetId);\n target.hover(monitor, targetId);\n }\n}\n","\"use strict\";\nfunction __export(m) {\n for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar beginDrag_1 = require(\"./beginDrag\");\nvar publishDragSource_1 = require(\"./publishDragSource\");\nvar hover_1 = require(\"./hover\");\nvar drop_1 = require(\"./drop\");\nvar endDrag_1 = require(\"./endDrag\");\n__export(require(\"./types\"));\nfunction createDragDropActions(manager) {\n return {\n beginDrag: beginDrag_1.default(manager),\n publishDragSource: publishDragSource_1.default(manager),\n hover: hover_1.default(manager),\n drop: drop_1.default(manager),\n endDrag: endDrag_1.default(manager),\n };\n}\nexports.default = createDragDropActions;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar types_1 = require(\"../types\");\nfunction setClientOffset(clientOffset, sourceClientOffset) {\n return {\n type: types_1.INIT_COORDS,\n payload: {\n sourceClientOffset: sourceClientOffset || null,\n clientOffset: clientOffset || null,\n },\n };\n}\nexports.setClientOffset = setClientOffset;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar types_1 = require(\"./types\");\nfunction createPublishDragSource(manager) {\n return function publishDragSource() {\n var monitor = manager.getMonitor();\n if (monitor.isDragging()) {\n return { type: types_1.PUBLISH_DRAG_SOURCE };\n }\n };\n}\nexports.default = createPublishDragSource;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.INIT_COORDS = 'dnd-core/INIT_COORDS';\nexports.BEGIN_DRAG = 'dnd-core/BEGIN_DRAG';\nexports.PUBLISH_DRAG_SOURCE = 'dnd-core/PUBLISH_DRAG_SOURCE';\nexports.HOVER = 'dnd-core/HOVER';\nexports.DROP = 'dnd-core/DROP';\nexports.END_DRAG = 'dnd-core/END_DRAG';\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.ADD_SOURCE = 'dnd-core/ADD_SOURCE';\nexports.ADD_TARGET = 'dnd-core/ADD_TARGET';\nexports.REMOVE_SOURCE = 'dnd-core/REMOVE_SOURCE';\nexports.REMOVE_TARGET = 'dnd-core/REMOVE_TARGET';\nfunction addSource(sourceId) {\n return {\n type: exports.ADD_SOURCE,\n payload: {\n sourceId: sourceId,\n },\n };\n}\nexports.addSource = addSource;\nfunction addTarget(targetId) {\n return {\n type: exports.ADD_TARGET,\n payload: {\n targetId: targetId,\n },\n };\n}\nexports.addTarget = addTarget;\nfunction removeSource(sourceId) {\n return {\n type: exports.REMOVE_SOURCE,\n payload: {\n sourceId: sourceId,\n },\n };\n}\nexports.removeSource = removeSource;\nfunction removeTarget(targetId) {\n return {\n type: exports.REMOVE_TARGET,\n payload: {\n targetId: targetId,\n },\n };\n}\nexports.removeTarget = removeTarget;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar invariant = require('invariant');\nfunction validateSourceContract(source) {\n invariant(typeof source.canDrag === 'function', 'Expected canDrag to be a function.');\n invariant(typeof source.beginDrag === 'function', 'Expected beginDrag to be a function.');\n invariant(typeof source.endDrag === 'function', 'Expected endDrag to be a function.');\n}\nexports.validateSourceContract = validateSourceContract;\nfunction validateTargetContract(target) {\n invariant(typeof target.canDrop === 'function', 'Expected canDrop to be a function.');\n invariant(typeof target.hover === 'function', 'Expected hover to be a function.');\n invariant(typeof target.drop === 'function', 'Expected beginDrag to be a function.');\n}\nexports.validateTargetContract = validateTargetContract;\nfunction validateType(type, allowArray) {\n if (allowArray && Array.isArray(type)) {\n type.forEach(function (t) { return validateType(t, false); });\n return;\n }\n invariant(typeof type === 'string' || typeof type === 'symbol', allowArray\n ? 'Type can only be a string, a symbol, or an array of either.'\n : 'Type can only be a string or a symbol.');\n}\nexports.validateType = validateType;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar DragDropManagerImpl_1 = require(\"./DragDropManagerImpl\");\nfunction createDragDropManager(backend, context, debugMode) {\n return new DragDropManagerImpl_1.default(backend, context, debugMode);\n}\nexports.createDragDropManager = createDragDropManager;\n","\"use strict\";\nfunction __export(m) {\n for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];\n}\nObject.defineProperty(exports, \"__esModule\", { value: true });\n__export(require(\"./interfaces\"));\n__export(require(\"./factories\"));\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar HandlerRole;\n(function (HandlerRole) {\n HandlerRole[\"SOURCE\"] = \"SOURCE\";\n HandlerRole[\"TARGET\"] = \"TARGET\";\n})(HandlerRole = exports.HandlerRole || (exports.HandlerRole = {}));\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar dragDrop_1 = require(\"../actions/dragDrop\");\nvar registry_1 = require(\"../actions/registry\");\nvar equality_1 = require(\"../utils/equality\");\nvar dirtiness_1 = require(\"../utils/dirtiness\");\nvar discount_lodash_1 = require(\"../utils/discount_lodash\");\nfunction dirtyHandlerIds(state, action) {\n if (state === void 0) { state = dirtiness_1.NONE; }\n switch (action.type) {\n case dragDrop_1.HOVER:\n break;\n case registry_1.ADD_SOURCE:\n case registry_1.ADD_TARGET:\n case registry_1.REMOVE_TARGET:\n case registry_1.REMOVE_SOURCE:\n return dirtiness_1.NONE;\n case dragDrop_1.BEGIN_DRAG:\n case dragDrop_1.PUBLISH_DRAG_SOURCE:\n case dragDrop_1.END_DRAG:\n case dragDrop_1.DROP:\n default:\n return dirtiness_1.ALL;\n }\n var _a = action.payload, _b = _a.targetIds, targetIds = _b === void 0 ? [] : _b, _c = _a.prevTargetIds, prevTargetIds = _c === void 0 ? [] : _c;\n var result = discount_lodash_1.xor(targetIds, prevTargetIds);\n var didChange = result.length > 0 || !equality_1.areArraysEqual(targetIds, prevTargetIds);\n if (!didChange) {\n return dirtiness_1.NONE;\n }\n // Check the target ids at the innermost position. If they are valid, add them\n // to the result\n var prevInnermostTargetId = prevTargetIds[prevTargetIds.length - 1];\n var innermostTargetId = targetIds[targetIds.length - 1];\n if (prevInnermostTargetId !== innermostTargetId) {\n if (prevInnermostTargetId) {\n result.push(prevInnermostTargetId);\n }\n if (innermostTargetId) {\n result.push(innermostTargetId);\n }\n }\n return result;\n}\nexports.default = dirtyHandlerIds;\n","\"use strict\";\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar dragDrop_1 = require(\"../actions/dragDrop\");\nvar equality_1 = require(\"../utils/equality\");\nvar initialState = {\n initialSourceClientOffset: null,\n initialClientOffset: null,\n clientOffset: null,\n};\nfunction dragOffset(state, action) {\n if (state === void 0) { state = initialState; }\n var payload = action.payload;\n switch (action.type) {\n case dragDrop_1.INIT_COORDS:\n case dragDrop_1.BEGIN_DRAG:\n return {\n initialSourceClientOffset: payload.sourceClientOffset,\n initialClientOffset: payload.clientOffset,\n clientOffset: payload.clientOffset,\n };\n case dragDrop_1.HOVER:\n if (equality_1.areCoordsEqual(state.clientOffset, payload.clientOffset)) {\n return state;\n }\n return __assign({}, state, { clientOffset: payload.clientOffset });\n case dragDrop_1.END_DRAG:\n case dragDrop_1.DROP:\n return initialState;\n default:\n return state;\n }\n}\nexports.default = dragOffset;\n","\"use strict\";\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar dragDrop_1 = require(\"../actions/dragDrop\");\nvar registry_1 = require(\"../actions/registry\");\nvar discount_lodash_1 = require(\"../utils/discount_lodash\");\nvar initialState = {\n itemType: null,\n item: null,\n sourceId: null,\n targetIds: [],\n dropResult: null,\n didDrop: false,\n isSourcePublic: null,\n};\nfunction dragOperation(state, action) {\n if (state === void 0) { state = initialState; }\n var payload = action.payload;\n switch (action.type) {\n case dragDrop_1.BEGIN_DRAG:\n return __assign({}, state, { itemType: payload.itemType, item: payload.item, sourceId: payload.sourceId, isSourcePublic: payload.isSourcePublic, dropResult: null, didDrop: false });\n case dragDrop_1.PUBLISH_DRAG_SOURCE:\n return __assign({}, state, { isSourcePublic: true });\n case dragDrop_1.HOVER:\n return __assign({}, state, { targetIds: payload.targetIds });\n case registry_1.REMOVE_TARGET:\n if (state.targetIds.indexOf(payload.targetId) === -1) {\n return state;\n }\n return __assign({}, state, { targetIds: discount_lodash_1.without(state.targetIds, payload.targetId) });\n case dragDrop_1.DROP:\n return __assign({}, state, { dropResult: payload.dropResult, didDrop: true, targetIds: [] });\n case dragDrop_1.END_DRAG:\n return __assign({}, state, { itemType: null, item: null, sourceId: null, dropResult: null, didDrop: false, isSourcePublic: null, targetIds: [] });\n default:\n return state;\n }\n}\nexports.default = dragOperation;\n","\"use strict\";\nvar __assign = (this && this.__assign) || function () {\n __assign = Object.assign || function(t) {\n for (var s, i = 1, n = arguments.length; i < n; i++) {\n s = arguments[i];\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))\n t[p] = s[p];\n }\n return t;\n };\n return __assign.apply(this, arguments);\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar dragOffset_1 = require(\"./dragOffset\");\nvar dragOperation_1 = require(\"./dragOperation\");\nvar refCount_1 = require(\"./refCount\");\nvar dirtyHandlerIds_1 = require(\"./dirtyHandlerIds\");\nvar stateId_1 = require(\"./stateId\");\nvar discount_lodash_1 = require(\"../utils/discount_lodash\");\nfunction reduce(state, action) {\n if (state === void 0) { state = {}; }\n return {\n dirtyHandlerIds: dirtyHandlerIds_1.default(state.dirtyHandlerIds, {\n type: action.type,\n payload: __assign({}, action.payload, { prevTargetIds: discount_lodash_1.get(state, 'dragOperation.targetIds', []) }),\n }),\n dragOffset: dragOffset_1.default(state.dragOffset, action),\n refCount: refCount_1.default(state.refCount, action),\n dragOperation: dragOperation_1.default(state.dragOperation, action),\n stateId: stateId_1.default(state.stateId),\n };\n}\nexports.default = reduce;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar registry_1 = require(\"../actions/registry\");\nfunction refCount(state, action) {\n if (state === void 0) { state = 0; }\n switch (action.type) {\n case registry_1.ADD_SOURCE:\n case registry_1.ADD_TARGET:\n return state + 1;\n case registry_1.REMOVE_SOURCE:\n case registry_1.REMOVE_TARGET:\n return state - 1;\n default:\n return state;\n }\n}\nexports.default = refCount;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nfunction stateId(state) {\n if (state === void 0) { state = 0; }\n return state + 1;\n}\nexports.default = stateId;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Coordinate addition\n * @param a The first coordinate\n * @param b The second coordinate\n */\nfunction add(a, b) {\n return {\n x: a.x + b.x,\n y: a.y + b.y,\n };\n}\nexports.add = add;\n/**\n * Coordinate subtraction\n * @param a The first coordinate\n * @param b The second coordinate\n */\nfunction subtract(a, b) {\n return {\n x: a.x - b.x,\n y: a.y - b.y,\n };\n}\nexports.subtract = subtract;\n/**\n * Returns the cartesian distance of the drag source component's position, based on its position\n * at the time when the current drag operation has started, and the movement difference.\n *\n * Returns null if no item is being dragged.\n *\n * @param state The offset state to compute from\n */\nfunction getSourceClientOffset(state) {\n var clientOffset = state.clientOffset, initialClientOffset = state.initialClientOffset, initialSourceClientOffset = state.initialSourceClientOffset;\n if (!clientOffset || !initialClientOffset || !initialSourceClientOffset) {\n return null;\n }\n return subtract(add(clientOffset, initialSourceClientOffset), initialClientOffset);\n}\nexports.getSourceClientOffset = getSourceClientOffset;\n/**\n * Determines the x,y offset between the client offset and the initial client offset\n *\n * @param state The offset state to compute from\n */\nfunction getDifferenceFromInitialOffset(state) {\n var clientOffset = state.clientOffset, initialClientOffset = state.initialClientOffset;\n if (!clientOffset || !initialClientOffset) {\n return null;\n }\n return subtract(clientOffset, initialClientOffset);\n}\nexports.getDifferenceFromInitialOffset = getDifferenceFromInitialOffset;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar discount_lodash_1 = require(\"./discount_lodash\");\nexports.NONE = [];\nexports.ALL = [];\nexports.NONE.__IS_NONE__ = true;\nexports.ALL.__IS_ALL__ = true;\n/**\n * Determines if the given handler IDs are dirty or not.\n *\n * @param dirtyIds The set of dirty handler ids\n * @param handlerIds The set of handler ids to check\n */\nfunction areDirty(dirtyIds, handlerIds) {\n if (dirtyIds === exports.NONE) {\n return false;\n }\n if (dirtyIds === exports.ALL || typeof handlerIds === 'undefined') {\n return true;\n }\n var commonIds = discount_lodash_1.intersection(handlerIds, dirtyIds);\n return commonIds.length > 0;\n}\nexports.areDirty = areDirty;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * drop-in replacement for _.get\n * @param obj\n * @param path\n * @param defaultValue\n */\nfunction get(obj, path, defaultValue) {\n return path\n .split('.')\n .reduce(function (a, c) { return (a && a[c] ? a[c] : defaultValue || null); }, obj);\n}\nexports.get = get;\n/**\n * drop-in replacement for _.without\n */\nfunction without(items, item) {\n return items.filter(function (i) { return i !== item; });\n}\nexports.without = without;\n/**\n * drop-in replacement for _.isString\n * @param input\n */\nfunction isString(input) {\n return typeof input === 'string';\n}\nexports.isString = isString;\n/**\n * drop-in replacement for _.isString\n * @param input\n */\nfunction isObject(input) {\n return typeof input === 'object';\n}\nexports.isObject = isObject;\n/**\n * repalcement for _.xor\n * @param itemsA\n * @param itemsB\n */\nfunction xor(itemsA, itemsB) {\n var map = new Map();\n var insertItem = function (item) {\n return map.set(item, map.has(item) ? map.get(item) + 1 : 1);\n };\n itemsA.forEach(insertItem);\n itemsB.forEach(insertItem);\n var result = [];\n map.forEach(function (count, key) {\n if (count === 1) {\n result.push(key);\n }\n });\n return result;\n}\nexports.xor = xor;\n/**\n * replacement for _.intersection\n * @param itemsA\n * @param itemsB\n */\nfunction intersection(itemsA, itemsB) {\n return itemsA.filter(function (t) { return itemsB.indexOf(t) > -1; });\n}\nexports.intersection = intersection;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.strictEquality = function (a, b) { return a === b; };\n/**\n * Determine if two cartesian coordinate offsets are equal\n * @param offsetA\n * @param offsetB\n */\nfunction areCoordsEqual(offsetA, offsetB) {\n if (!offsetA && !offsetB) {\n return true;\n }\n else if (!offsetA || !offsetB) {\n return false;\n }\n else {\n return offsetA.x === offsetB.x && offsetA.y === offsetB.y;\n }\n}\nexports.areCoordsEqual = areCoordsEqual;\n/**\n * Determines if two arrays of items are equal\n * @param a The first array of items\n * @param b The second array of items\n */\nfunction areArraysEqual(a, b, isEqual) {\n if (isEqual === void 0) { isEqual = exports.strictEquality; }\n if (a.length !== b.length) {\n return false;\n }\n for (var i = 0; i < a.length; ++i) {\n if (!isEqual(a[i], b[i])) {\n return false;\n }\n }\n return true;\n}\nexports.areArraysEqual = areArraysEqual;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar nextUniqueId = 0;\nfunction getNextUniqueId() {\n return nextUniqueId++;\n}\nexports.default = getNextUniqueId;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nfunction matchesType(targetType, draggedItemType) {\n if (draggedItemType === null) {\n return targetType === null;\n }\n return Array.isArray(targetType)\n ? targetType.some(function (t) { return t === draggedItemType; })\n : targetType === draggedItemType;\n}\nexports.default = matchesType;\n","/* eslint-disable no-return-assign */\nimport canUseDOM from './canUseDOM';\nexport var optionsSupported = false;\nexport var onceSupported = false;\n\ntry {\n var options = {\n get passive() {\n return optionsSupported = true;\n },\n\n get once() {\n // eslint-disable-next-line no-multi-assign\n return onceSupported = optionsSupported = true;\n }\n\n };\n\n if (canUseDOM) {\n window.addEventListener('test', options, options);\n window.removeEventListener('test', options, true);\n }\n} catch (e) {\n /* */\n}\n\n/**\n * An `addEventListener` ponyfill, supports the `once` option\n * \n * @param node the element\n * @param eventName the event name\n * @param handle the handler\n * @param options event options\n */\nfunction addEventListener(node, eventName, handler, options) {\n if (options && typeof options !== 'boolean' && !onceSupported) {\n var once = options.once,\n capture = options.capture;\n var wrappedHandler = handler;\n\n if (!onceSupported && once) {\n wrappedHandler = handler.__once || function onceHandler(event) {\n this.removeEventListener(eventName, onceHandler, capture);\n handler.call(this, event);\n };\n\n handler.__once = wrappedHandler;\n }\n\n node.addEventListener(eventName, wrappedHandler, optionsSupported ? options : capture);\n }\n\n node.addEventListener(eventName, handler, options);\n}\n\nexport default addEventListener;","export default !!(typeof window !== 'undefined' && window.document && window.document.createElement);","/* eslint-disable no-bitwise, no-cond-assign */\n\n/**\n * Checks if an element contains another given element.\n * \n * @param context the context element\n * @param node the element to check\n */\nexport default function contains(context, node) {\n // HTML DOM and SVG DOM may have different support levels,\n // so we need to check on context instead of a document root element.\n if (context.contains) return context.contains(node);\n if (context.compareDocumentPosition) return context === node || !!(context.compareDocumentPosition(node) & 16);\n}","import ownerWindow from './ownerWindow';\n/**\n * Returns one or all computed style properties of an element.\n * \n * @param node the element\n * @param psuedoElement the style property\n */\n\nexport default function getComputedStyle(node, psuedoElement) {\n return ownerWindow(node).getComputedStyle(node, psuedoElement);\n}","import ownerDocument from './ownerDocument';\n/**\n * Returns the owner window of a given element.\n * \n * @param node the element\n */\n\nexport default function ownerWindow(node) {\n var doc = ownerDocument(node);\n return doc && doc.defaultView || window;\n}","var rUpper = /([A-Z])/g;\nexport default function hyphenate(string) {\n return string.replace(rUpper, '-$1').toLowerCase();\n}","/**\n * Copyright 2013-2014, Facebook, Inc.\n * All rights reserved.\n * https://github.com/facebook/react/blob/2aeb8a2a6beb00617a4217f7f8284924fa2ad819/src/vendor/core/hyphenateStyleName.js\n */\nimport hyphenate from './hyphenate';\nvar msPattern = /^ms-/;\nexport default function hyphenateStyleName(string) {\n return hyphenate(string).replace(msPattern, '-ms-');\n}","var supportedTransforms = /^((translate|rotate|scale)(X|Y|Z|3d)?|matrix(3d)?|perspective|skew(X|Y)?)$/i;\nexport default function isTransform(value) {\n return !!(value && supportedTransforms.test(value));\n}","import getComputedStyle from './getComputedStyle';\nimport hyphenate from './hyphenateStyle';\nimport isTransform from './isTransform';\n\nfunction style(node, property) {\n var css = '';\n var transforms = '';\n\n if (typeof property === 'string') {\n return node.style.getPropertyValue(hyphenate(property)) || getComputedStyle(node).getPropertyValue(hyphenate(property));\n }\n\n Object.keys(property).forEach(function (key) {\n var value = property[key];\n\n if (!value && value !== 0) {\n node.style.removeProperty(hyphenate(key));\n } else if (isTransform(key)) {\n transforms += key + \"(\" + value + \") \";\n } else {\n css += hyphenate(key) + \": \" + value + \";\";\n }\n });\n\n if (transforms) {\n css += \"transform: \" + transforms + \";\";\n }\n\n node.style.cssText += \";\" + css;\n}\n\nexport default style;","/**\n * Checks if a given element has a CSS class.\n * \n * @param element the element\n * @param className the CSS class name\n */\nexport default function hasClass(element, className) {\n if (element.classList) return !!className && element.classList.contains(className);\n return (\" \" + (element.className.baseVal || element.className) + \" \").indexOf(\" \" + className + \" \") !== -1;\n}","import addEventListener from './addEventListener';\nimport removeEventListener from './removeEventListener';\n\nfunction listen(node, eventName, handler, options) {\n addEventListener(node, eventName, handler, options);\n return function () {\n removeEventListener(node, eventName, handler, options);\n };\n}\n\nexport default listen;","/**\n * Returns the owner document of a given element.\n * \n * @param node the element\n */\nexport default function ownerDocument(node) {\n return node && node.ownerDocument || document;\n}","var toArray = Function.prototype.bind.call(Function.prototype.call, [].slice);\n/**\n * Runs `querySelectorAll` on a given element.\n * \n * @param element the element\n * @param selector the selector\n */\n\nexport default function qsa(element, selector) {\n return toArray(element.querySelectorAll(selector));\n}","/**\n * A `removeEventListener` ponyfill\n * \n * @param node the element\n * @param eventName the event name\n * @param handle the handler\n * @param options event options\n */\nfunction removeEventListener(node, eventName, handler, options) {\n var capture = options && typeof options !== 'boolean' ? options.capture : options;\n node.removeEventListener(eventName, handler, capture);\n\n if (handler.__once) {\n node.removeEventListener(eventName, handler.__once, capture);\n }\n}\n\nexport default removeEventListener;","import css from './css';\nimport listen from './listen';\nimport triggerEvent from './triggerEvent';\n\nfunction parseDuration(node) {\n var str = css(node, 'transitionDuration') || '';\n var mult = str.indexOf('ms') === -1 ? 1000 : 1;\n return parseFloat(str) * mult;\n}\n\nfunction emulateTransitionEnd(element, duration, padding) {\n if (padding === void 0) {\n padding = 5;\n }\n\n var called = false;\n var handle = setTimeout(function () {\n if (!called) triggerEvent(element, 'transitionend', true);\n }, duration + padding);\n var remove = listen(element, 'transitionend', function () {\n called = true;\n }, {\n once: true\n });\n return function () {\n clearTimeout(handle);\n remove();\n };\n}\n\nexport default function transitionEnd(element, handler, duration, padding) {\n if (duration == null) duration = parseDuration(element) || 0;\n var removeEmulate = emulateTransitionEnd(element, duration, padding);\n var remove = listen(element, 'transitionend', handler);\n return function () {\n removeEmulate();\n remove();\n };\n}","/**\n * Triggers an event on a given element.\n * \n * @param node the element\n * @param eventName the event name to trigger\n * @param bubbles whether the event should bubble up\n * @param cancelable whether the event should be cancelable\n */\nexport default function triggerEvent(node, eventName, bubbles, cancelable) {\n if (bubbles === void 0) {\n bubbles = false;\n }\n\n if (cancelable === void 0) {\n cancelable = true;\n }\n\n if (node) {\n var event = document.createEvent('HTMLEvents');\n event.initEvent(eventName, bubbles, cancelable);\n node.dispatchEvent(event);\n }\n}","'use strict';\n\nvar reactIs = require('react-is');\n\n/**\n * Copyright 2015, Yahoo! Inc.\n * Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.\n */\nvar REACT_STATICS = {\n childContextTypes: true,\n contextType: true,\n contextTypes: true,\n defaultProps: true,\n displayName: true,\n getDefaultProps: true,\n getDerivedStateFromError: true,\n getDerivedStateFromProps: true,\n mixins: true,\n propTypes: true,\n type: true\n};\nvar KNOWN_STATICS = {\n name: true,\n length: true,\n prototype: true,\n caller: true,\n callee: true,\n arguments: true,\n arity: true\n};\nvar FORWARD_REF_STATICS = {\n '$$typeof': true,\n render: true,\n defaultProps: true,\n displayName: true,\n propTypes: true\n};\nvar MEMO_STATICS = {\n '$$typeof': true,\n compare: true,\n defaultProps: true,\n displayName: true,\n propTypes: true,\n type: true\n};\nvar TYPE_STATICS = {};\nTYPE_STATICS[reactIs.ForwardRef] = FORWARD_REF_STATICS;\nTYPE_STATICS[reactIs.Memo] = MEMO_STATICS;\n\nfunction getStatics(component) {\n // React v16.11 and below\n if (reactIs.isMemo(component)) {\n return MEMO_STATICS;\n } // React v16.12 and above\n\n\n return TYPE_STATICS[component['$$typeof']] || REACT_STATICS;\n}\n\nvar defineProperty = Object.defineProperty;\nvar getOwnPropertyNames = Object.getOwnPropertyNames;\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\nvar getPrototypeOf = Object.getPrototypeOf;\nvar objectPrototype = Object.prototype;\nfunction hoistNonReactStatics(targetComponent, sourceComponent, blacklist) {\n if (typeof sourceComponent !== 'string') {\n // don't hoist over string (html) components\n if (objectPrototype) {\n var inheritedComponent = getPrototypeOf(sourceComponent);\n\n if (inheritedComponent && inheritedComponent !== objectPrototype) {\n hoistNonReactStatics(targetComponent, inheritedComponent, blacklist);\n }\n }\n\n var keys = getOwnPropertyNames(sourceComponent);\n\n if (getOwnPropertySymbols) {\n keys = keys.concat(getOwnPropertySymbols(sourceComponent));\n }\n\n var targetStatics = getStatics(targetComponent);\n var sourceStatics = getStatics(sourceComponent);\n\n for (var i = 0; i < keys.length; ++i) {\n var key = keys[i];\n\n if (!KNOWN_STATICS[key] && !(blacklist && blacklist[key]) && !(sourceStatics && sourceStatics[key]) && !(targetStatics && targetStatics[key])) {\n var descriptor = getOwnPropertyDescriptor(sourceComponent, key);\n\n try {\n // Avoid failures from read-only properties\n defineProperty(targetComponent, key, descriptor);\n } catch (e) {}\n }\n }\n }\n\n return targetComponent;\n}\n\nmodule.exports = hoistNonReactStatics;\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\n/**\n * Use invariant() to assert state which your program assumes to be true.\n *\n * Provide sprintf-style format (only %s is supported) and arguments\n * to provide information about what broke and what you were\n * expecting.\n *\n * The invariant message will be stripped in production, but the invariant\n * will remain to ensure logic does not differ in production.\n */\n\nvar invariant = function(condition, format, a, b, c, d, e, f) {\n if (process.env.NODE_ENV !== 'production') {\n if (format === undefined) {\n throw new Error('invariant requires an error message argument');\n }\n }\n\n if (!condition) {\n var error;\n if (format === undefined) {\n error = new Error(\n 'Minified exception occurred; use the non-minified dev environment ' +\n 'for the full error message and additional helpful warnings.'\n );\n } else {\n var args = [a, b, c, d, e, f];\n var argIndex = 0;\n error = new Error(\n format.replace(/%s/g, function() { return args[argIndex++]; })\n );\n error.name = 'Invariant Violation';\n }\n\n error.framesToPop = 1; // we don't care about invariant's own frame\n throw error;\n }\n};\n\nmodule.exports = invariant;\n","var _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nexport var isBrowser = (typeof window === \"undefined\" ? \"undefined\" : _typeof(window)) === \"object\" && (typeof document === \"undefined\" ? \"undefined\" : _typeof(document)) === 'object' && document.nodeType === 9;\n\nexport default isBrowser;\n","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","export default function _typeof(o) {\n \"@babel/helpers - typeof\";\n\n return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (o) {\n return typeof o;\n } : function (o) {\n return o && \"function\" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? \"symbol\" : typeof o;\n }, _typeof(o);\n}","import _typeof from \"./typeof.js\";\nimport toPrimitive from \"./toPrimitive.js\";\nexport default function toPropertyKey(t) {\n var i = toPrimitive(t, \"string\");\n return \"symbol\" == _typeof(i) ? i : i + \"\";\n}","import _typeof from \"./typeof.js\";\nexport default function toPrimitive(t, r) {\n if (\"object\" != _typeof(t) || !t) return t;\n var e = t[Symbol.toPrimitive];\n if (void 0 !== e) {\n var i = e.call(t, r || \"default\");\n if (\"object\" != _typeof(i)) return i;\n throw new TypeError(\"@@toPrimitive must return a primitive value.\");\n }\n return (\"string\" === r ? String : Number)(t);\n}","import toPropertyKey from \"./toPropertyKey.js\";\nfunction _defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, toPropertyKey(descriptor.key), descriptor);\n }\n}\nexport default function _createClass(Constructor, protoProps, staticProps) {\n if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n if (staticProps) _defineProperties(Constructor, staticProps);\n Object.defineProperty(Constructor, \"prototype\", {\n writable: false\n });\n return Constructor;\n}","export default function _setPrototypeOf(o, p) {\n _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function _setPrototypeOf(o, p) {\n o.__proto__ = p;\n return o;\n };\n return _setPrototypeOf(o, p);\n}","import setPrototypeOf from \"./setPrototypeOf.js\";\nexport default function _inheritsLoose(subClass, superClass) {\n subClass.prototype = Object.create(superClass.prototype);\n subClass.prototype.constructor = subClass;\n setPrototypeOf(subClass, superClass);\n}","export default function _assertThisInitialized(self) {\n if (self === void 0) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n return self;\n}","import _extends from '@babel/runtime/helpers/esm/extends';\nimport isInBrowser from 'is-in-browser';\nimport warning from 'tiny-warning';\nimport _createClass from '@babel/runtime/helpers/esm/createClass';\nimport _inheritsLoose from '@babel/runtime/helpers/esm/inheritsLoose';\nimport _assertThisInitialized from '@babel/runtime/helpers/esm/assertThisInitialized';\nimport _objectWithoutPropertiesLoose from '@babel/runtime/helpers/esm/objectWithoutPropertiesLoose';\n\nvar plainObjectConstrurctor = {}.constructor;\nfunction cloneStyle(style) {\n if (style == null || typeof style !== 'object') return style;\n if (Array.isArray(style)) return style.map(cloneStyle);\n if (style.constructor !== plainObjectConstrurctor) return style;\n var newStyle = {};\n\n for (var name in style) {\n newStyle[name] = cloneStyle(style[name]);\n }\n\n return newStyle;\n}\n\n/**\n * Create a rule instance.\n */\n\nfunction createRule(name, decl, options) {\n if (name === void 0) {\n name = 'unnamed';\n }\n\n var jss = options.jss;\n var declCopy = cloneStyle(decl);\n var rule = jss.plugins.onCreateRule(name, declCopy, options);\n if (rule) return rule; // It is an at-rule and it has no instance.\n\n if (name[0] === '@') {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Unknown rule \" + name) : void 0;\n }\n\n return null;\n}\n\nvar join = function join(value, by) {\n var result = '';\n\n for (var i = 0; i < value.length; i++) {\n // Remove !important from the value, it will be readded later.\n if (value[i] === '!important') break;\n if (result) result += by;\n result += value[i];\n }\n\n return result;\n};\n/**\n * Converts JSS array value to a CSS string.\n *\n * `margin: [['5px', '10px']]` > `margin: 5px 10px;`\n * `border: ['1px', '2px']` > `border: 1px, 2px;`\n * `margin: [['5px', '10px'], '!important']` > `margin: 5px 10px !important;`\n * `color: ['red', !important]` > `color: red !important;`\n */\n\n\nvar toCssValue = function toCssValue(value) {\n if (!Array.isArray(value)) return value;\n var cssValue = ''; // Support space separated values via `[['5px', '10px']]`.\n\n if (Array.isArray(value[0])) {\n for (var i = 0; i < value.length; i++) {\n if (value[i] === '!important') break;\n if (cssValue) cssValue += ', ';\n cssValue += join(value[i], ' ');\n }\n } else cssValue = join(value, ', '); // Add !important, because it was ignored.\n\n\n if (value[value.length - 1] === '!important') {\n cssValue += ' !important';\n }\n\n return cssValue;\n};\n\nfunction getWhitespaceSymbols(options) {\n if (options && options.format === false) {\n return {\n linebreak: '',\n space: ''\n };\n }\n\n return {\n linebreak: '\\n',\n space: ' '\n };\n}\n\n/**\n * Indent a string.\n * http://jsperf.com/array-join-vs-for\n */\n\nfunction indentStr(str, indent) {\n var result = '';\n\n for (var index = 0; index < indent; index++) {\n result += ' ';\n }\n\n return result + str;\n}\n/**\n * Converts a Rule to CSS string.\n */\n\n\nfunction toCss(selector, style, options) {\n if (options === void 0) {\n options = {};\n }\n\n var result = '';\n if (!style) return result;\n var _options = options,\n _options$indent = _options.indent,\n indent = _options$indent === void 0 ? 0 : _options$indent;\n var fallbacks = style.fallbacks;\n\n if (options.format === false) {\n indent = -Infinity;\n }\n\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak,\n space = _getWhitespaceSymbols.space;\n\n if (selector) indent++; // Apply fallbacks first.\n\n if (fallbacks) {\n // Array syntax {fallbacks: [{prop: value}]}\n if (Array.isArray(fallbacks)) {\n for (var index = 0; index < fallbacks.length; index++) {\n var fallback = fallbacks[index];\n\n for (var prop in fallback) {\n var value = fallback[prop];\n\n if (value != null) {\n if (result) result += linebreak;\n result += indentStr(prop + \":\" + space + toCssValue(value) + \";\", indent);\n }\n }\n }\n } else {\n // Object syntax {fallbacks: {prop: value}}\n for (var _prop in fallbacks) {\n var _value = fallbacks[_prop];\n\n if (_value != null) {\n if (result) result += linebreak;\n result += indentStr(_prop + \":\" + space + toCssValue(_value) + \";\", indent);\n }\n }\n }\n }\n\n for (var _prop2 in style) {\n var _value2 = style[_prop2];\n\n if (_value2 != null && _prop2 !== 'fallbacks') {\n if (result) result += linebreak;\n result += indentStr(_prop2 + \":\" + space + toCssValue(_value2) + \";\", indent);\n }\n } // Allow empty style in this case, because properties will be added dynamically.\n\n\n if (!result && !options.allowEmpty) return result; // When rule is being stringified before selector was defined.\n\n if (!selector) return result;\n indent--;\n if (result) result = \"\" + linebreak + result + linebreak;\n return indentStr(\"\" + selector + space + \"{\" + result, indent) + indentStr('}', indent);\n}\n\nvar escapeRegex = /([[\\].#*$><+~=|^:(),\"'`\\s])/g;\nvar nativeEscape = typeof CSS !== 'undefined' && CSS.escape;\nvar escape = (function (str) {\n return nativeEscape ? nativeEscape(str) : str.replace(escapeRegex, '\\\\$1');\n});\n\nvar BaseStyleRule =\n/*#__PURE__*/\nfunction () {\n function BaseStyleRule(key, style, options) {\n this.type = 'style';\n this.isProcessed = false;\n var sheet = options.sheet,\n Renderer = options.Renderer;\n this.key = key;\n this.options = options;\n this.style = style;\n if (sheet) this.renderer = sheet.renderer;else if (Renderer) this.renderer = new Renderer();\n }\n /**\n * Get or set a style property.\n */\n\n\n var _proto = BaseStyleRule.prototype;\n\n _proto.prop = function prop(name, value, options) {\n // It's a getter.\n if (value === undefined) return this.style[name]; // Don't do anything if the value has not changed.\n\n var force = options ? options.force : false;\n if (!force && this.style[name] === value) return this;\n var newValue = value;\n\n if (!options || options.process !== false) {\n newValue = this.options.jss.plugins.onChangeValue(value, name, this);\n }\n\n var isEmpty = newValue == null || newValue === false;\n var isDefined = name in this.style; // Value is empty and wasn't defined before.\n\n if (isEmpty && !isDefined && !force) return this; // We are going to remove this value.\n\n var remove = isEmpty && isDefined;\n if (remove) delete this.style[name];else this.style[name] = newValue; // Renderable is defined if StyleSheet option `link` is true.\n\n if (this.renderable && this.renderer) {\n if (remove) this.renderer.removeProperty(this.renderable, name);else this.renderer.setProperty(this.renderable, name, newValue);\n return this;\n }\n\n var sheet = this.options.sheet;\n\n if (sheet && sheet.attached) {\n process.env.NODE_ENV !== \"production\" ? warning(false, '[JSS] Rule is not linked. Missing sheet option \"link: true\".') : void 0;\n }\n\n return this;\n };\n\n return BaseStyleRule;\n}();\nvar StyleRule =\n/*#__PURE__*/\nfunction (_BaseStyleRule) {\n _inheritsLoose(StyleRule, _BaseStyleRule);\n\n function StyleRule(key, style, options) {\n var _this;\n\n _this = _BaseStyleRule.call(this, key, style, options) || this;\n var selector = options.selector,\n scoped = options.scoped,\n sheet = options.sheet,\n generateId = options.generateId;\n\n if (selector) {\n _this.selectorText = selector;\n } else if (scoped !== false) {\n _this.id = generateId(_assertThisInitialized(_assertThisInitialized(_this)), sheet);\n _this.selectorText = \".\" + escape(_this.id);\n }\n\n return _this;\n }\n /**\n * Set selector string.\n * Attention: use this with caution. Most browsers didn't implement\n * selectorText setter, so this may result in rerendering of entire Style Sheet.\n */\n\n\n var _proto2 = StyleRule.prototype;\n\n /**\n * Apply rule to an element inline.\n */\n _proto2.applyTo = function applyTo(renderable) {\n var renderer = this.renderer;\n\n if (renderer) {\n var json = this.toJSON();\n\n for (var prop in json) {\n renderer.setProperty(renderable, prop, json[prop]);\n }\n }\n\n return this;\n }\n /**\n * Returns JSON representation of the rule.\n * Fallbacks are not supported.\n * Useful for inline styles.\n */\n ;\n\n _proto2.toJSON = function toJSON() {\n var json = {};\n\n for (var prop in this.style) {\n var value = this.style[prop];\n if (typeof value !== 'object') json[prop] = value;else if (Array.isArray(value)) json[prop] = toCssValue(value);\n }\n\n return json;\n }\n /**\n * Generates a CSS string.\n */\n ;\n\n _proto2.toString = function toString(options) {\n var sheet = this.options.sheet;\n var link = sheet ? sheet.options.link : false;\n var opts = link ? _extends({}, options, {\n allowEmpty: true\n }) : options;\n return toCss(this.selectorText, this.style, opts);\n };\n\n _createClass(StyleRule, [{\n key: \"selector\",\n set: function set(selector) {\n if (selector === this.selectorText) return;\n this.selectorText = selector;\n var renderer = this.renderer,\n renderable = this.renderable;\n if (!renderable || !renderer) return;\n var hasChanged = renderer.setSelector(renderable, selector); // If selector setter is not implemented, rerender the rule.\n\n if (!hasChanged) {\n renderer.replaceRule(renderable, this);\n }\n }\n /**\n * Get selector string.\n */\n ,\n get: function get() {\n return this.selectorText;\n }\n }]);\n\n return StyleRule;\n}(BaseStyleRule);\nvar pluginStyleRule = {\n onCreateRule: function onCreateRule(key, style, options) {\n if (key[0] === '@' || options.parent && options.parent.type === 'keyframes') {\n return null;\n }\n\n return new StyleRule(key, style, options);\n }\n};\n\nvar defaultToStringOptions = {\n indent: 1,\n children: true\n};\nvar atRegExp = /@([\\w-]+)/;\n/**\n * Conditional rule for @media, @supports\n */\n\nvar ConditionalRule =\n/*#__PURE__*/\nfunction () {\n function ConditionalRule(key, styles, options) {\n this.type = 'conditional';\n this.isProcessed = false;\n this.key = key;\n var atMatch = key.match(atRegExp);\n this.at = atMatch ? atMatch[1] : 'unknown'; // Key might contain a unique suffix in case the `name` passed by user was duplicate.\n\n this.query = options.name || \"@\" + this.at;\n this.options = options;\n this.rules = new RuleList(_extends({}, options, {\n parent: this\n }));\n\n for (var name in styles) {\n this.rules.add(name, styles[name]);\n }\n\n this.rules.process();\n }\n /**\n * Get a rule.\n */\n\n\n var _proto = ConditionalRule.prototype;\n\n _proto.getRule = function getRule(name) {\n return this.rules.get(name);\n }\n /**\n * Get index of a rule.\n */\n ;\n\n _proto.indexOf = function indexOf(rule) {\n return this.rules.indexOf(rule);\n }\n /**\n * Create and register rule, run plugins.\n */\n ;\n\n _proto.addRule = function addRule(name, style, options) {\n var rule = this.rules.add(name, style, options);\n if (!rule) return null;\n this.options.jss.plugins.onProcessRule(rule);\n return rule;\n }\n /**\n * Replace rule, run plugins.\n */\n ;\n\n _proto.replaceRule = function replaceRule(name, style, options) {\n var newRule = this.rules.replace(name, style, options);\n if (newRule) this.options.jss.plugins.onProcessRule(newRule);\n return newRule;\n }\n /**\n * Generates a CSS string.\n */\n ;\n\n _proto.toString = function toString(options) {\n if (options === void 0) {\n options = defaultToStringOptions;\n }\n\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak;\n\n if (options.indent == null) options.indent = defaultToStringOptions.indent;\n if (options.children == null) options.children = defaultToStringOptions.children;\n\n if (options.children === false) {\n return this.query + \" {}\";\n }\n\n var children = this.rules.toString(options);\n return children ? this.query + \" {\" + linebreak + children + linebreak + \"}\" : '';\n };\n\n return ConditionalRule;\n}();\nvar keyRegExp = /@container|@media|@supports\\s+/;\nvar pluginConditionalRule = {\n onCreateRule: function onCreateRule(key, styles, options) {\n return keyRegExp.test(key) ? new ConditionalRule(key, styles, options) : null;\n }\n};\n\nvar defaultToStringOptions$1 = {\n indent: 1,\n children: true\n};\nvar nameRegExp = /@keyframes\\s+([\\w-]+)/;\n/**\n * Rule for @keyframes\n */\n\nvar KeyframesRule =\n/*#__PURE__*/\nfunction () {\n function KeyframesRule(key, frames, options) {\n this.type = 'keyframes';\n this.at = '@keyframes';\n this.isProcessed = false;\n var nameMatch = key.match(nameRegExp);\n\n if (nameMatch && nameMatch[1]) {\n this.name = nameMatch[1];\n } else {\n this.name = 'noname';\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Bad keyframes name \" + key) : void 0;\n }\n\n this.key = this.type + \"-\" + this.name;\n this.options = options;\n var scoped = options.scoped,\n sheet = options.sheet,\n generateId = options.generateId;\n this.id = scoped === false ? this.name : escape(generateId(this, sheet));\n this.rules = new RuleList(_extends({}, options, {\n parent: this\n }));\n\n for (var name in frames) {\n this.rules.add(name, frames[name], _extends({}, options, {\n parent: this\n }));\n }\n\n this.rules.process();\n }\n /**\n * Generates a CSS string.\n */\n\n\n var _proto = KeyframesRule.prototype;\n\n _proto.toString = function toString(options) {\n if (options === void 0) {\n options = defaultToStringOptions$1;\n }\n\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak;\n\n if (options.indent == null) options.indent = defaultToStringOptions$1.indent;\n if (options.children == null) options.children = defaultToStringOptions$1.children;\n\n if (options.children === false) {\n return this.at + \" \" + this.id + \" {}\";\n }\n\n var children = this.rules.toString(options);\n if (children) children = \"\" + linebreak + children + linebreak;\n return this.at + \" \" + this.id + \" {\" + children + \"}\";\n };\n\n return KeyframesRule;\n}();\nvar keyRegExp$1 = /@keyframes\\s+/;\nvar refRegExp = /\\$([\\w-]+)/g;\n\nvar findReferencedKeyframe = function findReferencedKeyframe(val, keyframes) {\n if (typeof val === 'string') {\n return val.replace(refRegExp, function (match, name) {\n if (name in keyframes) {\n return keyframes[name];\n }\n\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Referenced keyframes rule \\\"\" + name + \"\\\" is not defined.\") : void 0;\n return match;\n });\n }\n\n return val;\n};\n/**\n * Replace the reference for a animation name.\n */\n\n\nvar replaceRef = function replaceRef(style, prop, keyframes) {\n var value = style[prop];\n var refKeyframe = findReferencedKeyframe(value, keyframes);\n\n if (refKeyframe !== value) {\n style[prop] = refKeyframe;\n }\n};\n\nvar pluginKeyframesRule = {\n onCreateRule: function onCreateRule(key, frames, options) {\n return typeof key === 'string' && keyRegExp$1.test(key) ? new KeyframesRule(key, frames, options) : null;\n },\n // Animation name ref replacer.\n onProcessStyle: function onProcessStyle(style, rule, sheet) {\n if (rule.type !== 'style' || !sheet) return style;\n if ('animation-name' in style) replaceRef(style, 'animation-name', sheet.keyframes);\n if ('animation' in style) replaceRef(style, 'animation', sheet.keyframes);\n return style;\n },\n onChangeValue: function onChangeValue(val, prop, rule) {\n var sheet = rule.options.sheet;\n\n if (!sheet) {\n return val;\n }\n\n switch (prop) {\n case 'animation':\n return findReferencedKeyframe(val, sheet.keyframes);\n\n case 'animation-name':\n return findReferencedKeyframe(val, sheet.keyframes);\n\n default:\n return val;\n }\n }\n};\n\nvar KeyframeRule =\n/*#__PURE__*/\nfunction (_BaseStyleRule) {\n _inheritsLoose(KeyframeRule, _BaseStyleRule);\n\n function KeyframeRule() {\n return _BaseStyleRule.apply(this, arguments) || this;\n }\n\n var _proto = KeyframeRule.prototype;\n\n /**\n * Generates a CSS string.\n */\n _proto.toString = function toString(options) {\n var sheet = this.options.sheet;\n var link = sheet ? sheet.options.link : false;\n var opts = link ? _extends({}, options, {\n allowEmpty: true\n }) : options;\n return toCss(this.key, this.style, opts);\n };\n\n return KeyframeRule;\n}(BaseStyleRule);\nvar pluginKeyframeRule = {\n onCreateRule: function onCreateRule(key, style, options) {\n if (options.parent && options.parent.type === 'keyframes') {\n return new KeyframeRule(key, style, options);\n }\n\n return null;\n }\n};\n\nvar FontFaceRule =\n/*#__PURE__*/\nfunction () {\n function FontFaceRule(key, style, options) {\n this.type = 'font-face';\n this.at = '@font-face';\n this.isProcessed = false;\n this.key = key;\n this.style = style;\n this.options = options;\n }\n /**\n * Generates a CSS string.\n */\n\n\n var _proto = FontFaceRule.prototype;\n\n _proto.toString = function toString(options) {\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak;\n\n if (Array.isArray(this.style)) {\n var str = '';\n\n for (var index = 0; index < this.style.length; index++) {\n str += toCss(this.at, this.style[index]);\n if (this.style[index + 1]) str += linebreak;\n }\n\n return str;\n }\n\n return toCss(this.at, this.style, options);\n };\n\n return FontFaceRule;\n}();\nvar keyRegExp$2 = /@font-face/;\nvar pluginFontFaceRule = {\n onCreateRule: function onCreateRule(key, style, options) {\n return keyRegExp$2.test(key) ? new FontFaceRule(key, style, options) : null;\n }\n};\n\nvar ViewportRule =\n/*#__PURE__*/\nfunction () {\n function ViewportRule(key, style, options) {\n this.type = 'viewport';\n this.at = '@viewport';\n this.isProcessed = false;\n this.key = key;\n this.style = style;\n this.options = options;\n }\n /**\n * Generates a CSS string.\n */\n\n\n var _proto = ViewportRule.prototype;\n\n _proto.toString = function toString(options) {\n return toCss(this.key, this.style, options);\n };\n\n return ViewportRule;\n}();\nvar pluginViewportRule = {\n onCreateRule: function onCreateRule(key, style, options) {\n return key === '@viewport' || key === '@-ms-viewport' ? new ViewportRule(key, style, options) : null;\n }\n};\n\nvar SimpleRule =\n/*#__PURE__*/\nfunction () {\n function SimpleRule(key, value, options) {\n this.type = 'simple';\n this.isProcessed = false;\n this.key = key;\n this.value = value;\n this.options = options;\n }\n /**\n * Generates a CSS string.\n */\n // eslint-disable-next-line no-unused-vars\n\n\n var _proto = SimpleRule.prototype;\n\n _proto.toString = function toString(options) {\n if (Array.isArray(this.value)) {\n var str = '';\n\n for (var index = 0; index < this.value.length; index++) {\n str += this.key + \" \" + this.value[index] + \";\";\n if (this.value[index + 1]) str += '\\n';\n }\n\n return str;\n }\n\n return this.key + \" \" + this.value + \";\";\n };\n\n return SimpleRule;\n}();\nvar keysMap = {\n '@charset': true,\n '@import': true,\n '@namespace': true\n};\nvar pluginSimpleRule = {\n onCreateRule: function onCreateRule(key, value, options) {\n return key in keysMap ? new SimpleRule(key, value, options) : null;\n }\n};\n\nvar plugins = [pluginStyleRule, pluginConditionalRule, pluginKeyframesRule, pluginKeyframeRule, pluginFontFaceRule, pluginViewportRule, pluginSimpleRule];\n\nvar defaultUpdateOptions = {\n process: true\n};\nvar forceUpdateOptions = {\n force: true,\n process: true\n /**\n * Contains rules objects and allows adding/removing etc.\n * Is used for e.g. by `StyleSheet` or `ConditionalRule`.\n */\n\n};\n\nvar RuleList =\n/*#__PURE__*/\nfunction () {\n // Rules registry for access by .get() method.\n // It contains the same rule registered by name and by selector.\n // Original styles object.\n // Used to ensure correct rules order.\n function RuleList(options) {\n this.map = {};\n this.raw = {};\n this.index = [];\n this.counter = 0;\n this.options = options;\n this.classes = options.classes;\n this.keyframes = options.keyframes;\n }\n /**\n * Create and register rule.\n *\n * Will not render after Style Sheet was rendered the first time.\n */\n\n\n var _proto = RuleList.prototype;\n\n _proto.add = function add(name, decl, ruleOptions) {\n var _this$options = this.options,\n parent = _this$options.parent,\n sheet = _this$options.sheet,\n jss = _this$options.jss,\n Renderer = _this$options.Renderer,\n generateId = _this$options.generateId,\n scoped = _this$options.scoped;\n\n var options = _extends({\n classes: this.classes,\n parent: parent,\n sheet: sheet,\n jss: jss,\n Renderer: Renderer,\n generateId: generateId,\n scoped: scoped,\n name: name,\n keyframes: this.keyframes,\n selector: undefined\n }, ruleOptions); // When user uses .createStyleSheet(), duplicate names are not possible, but\n // `sheet.addRule()` opens the door for any duplicate rule name. When this happens\n // we need to make the key unique within this RuleList instance scope.\n\n\n var key = name;\n\n if (name in this.raw) {\n key = name + \"-d\" + this.counter++;\n } // We need to save the original decl before creating the rule\n // because cache plugin needs to use it as a key to return a cached rule.\n\n\n this.raw[key] = decl;\n\n if (key in this.classes) {\n // E.g. rules inside of @media container\n options.selector = \".\" + escape(this.classes[key]);\n }\n\n var rule = createRule(key, decl, options);\n if (!rule) return null;\n this.register(rule);\n var index = options.index === undefined ? this.index.length : options.index;\n this.index.splice(index, 0, rule);\n return rule;\n }\n /**\n * Replace rule.\n * Create a new rule and remove old one instead of overwriting\n * because we want to invoke onCreateRule hook to make plugins work.\n */\n ;\n\n _proto.replace = function replace(name, decl, ruleOptions) {\n var oldRule = this.get(name);\n var oldIndex = this.index.indexOf(oldRule);\n\n if (oldRule) {\n this.remove(oldRule);\n }\n\n var options = ruleOptions;\n if (oldIndex !== -1) options = _extends({}, ruleOptions, {\n index: oldIndex\n });\n return this.add(name, decl, options);\n }\n /**\n * Get a rule by name or selector.\n */\n ;\n\n _proto.get = function get(nameOrSelector) {\n return this.map[nameOrSelector];\n }\n /**\n * Delete a rule.\n */\n ;\n\n _proto.remove = function remove(rule) {\n this.unregister(rule);\n delete this.raw[rule.key];\n this.index.splice(this.index.indexOf(rule), 1);\n }\n /**\n * Get index of a rule.\n */\n ;\n\n _proto.indexOf = function indexOf(rule) {\n return this.index.indexOf(rule);\n }\n /**\n * Run `onProcessRule()` plugins on every rule.\n */\n ;\n\n _proto.process = function process() {\n var plugins = this.options.jss.plugins; // We need to clone array because if we modify the index somewhere else during a loop\n // we end up with very hard-to-track-down side effects.\n\n this.index.slice(0).forEach(plugins.onProcessRule, plugins);\n }\n /**\n * Register a rule in `.map`, `.classes` and `.keyframes` maps.\n */\n ;\n\n _proto.register = function register(rule) {\n this.map[rule.key] = rule;\n\n if (rule instanceof StyleRule) {\n this.map[rule.selector] = rule;\n if (rule.id) this.classes[rule.key] = rule.id;\n } else if (rule instanceof KeyframesRule && this.keyframes) {\n this.keyframes[rule.name] = rule.id;\n }\n }\n /**\n * Unregister a rule.\n */\n ;\n\n _proto.unregister = function unregister(rule) {\n delete this.map[rule.key];\n\n if (rule instanceof StyleRule) {\n delete this.map[rule.selector];\n delete this.classes[rule.key];\n } else if (rule instanceof KeyframesRule) {\n delete this.keyframes[rule.name];\n }\n }\n /**\n * Update the function values with a new data.\n */\n ;\n\n _proto.update = function update() {\n var name;\n var data;\n var options;\n\n if (typeof (arguments.length <= 0 ? undefined : arguments[0]) === 'string') {\n name = arguments.length <= 0 ? undefined : arguments[0];\n data = arguments.length <= 1 ? undefined : arguments[1];\n options = arguments.length <= 2 ? undefined : arguments[2];\n } else {\n data = arguments.length <= 0 ? undefined : arguments[0];\n options = arguments.length <= 1 ? undefined : arguments[1];\n name = null;\n }\n\n if (name) {\n this.updateOne(this.get(name), data, options);\n } else {\n for (var index = 0; index < this.index.length; index++) {\n this.updateOne(this.index[index], data, options);\n }\n }\n }\n /**\n * Execute plugins, update rule props.\n */\n ;\n\n _proto.updateOne = function updateOne(rule, data, options) {\n if (options === void 0) {\n options = defaultUpdateOptions;\n }\n\n var _this$options2 = this.options,\n plugins = _this$options2.jss.plugins,\n sheet = _this$options2.sheet; // It is a rules container like for e.g. ConditionalRule.\n\n if (rule.rules instanceof RuleList) {\n rule.rules.update(data, options);\n return;\n }\n\n var style = rule.style;\n plugins.onUpdate(data, rule, sheet, options); // We rely on a new `style` ref in case it was mutated during onUpdate hook.\n\n if (options.process && style && style !== rule.style) {\n // We need to run the plugins in case new `style` relies on syntax plugins.\n plugins.onProcessStyle(rule.style, rule, sheet); // Update and add props.\n\n for (var prop in rule.style) {\n var nextValue = rule.style[prop];\n var prevValue = style[prop]; // We need to use `force: true` because `rule.style` has been updated during onUpdate hook, so `rule.prop()` will not update the CSSOM rule.\n // We do this comparison to avoid unneeded `rule.prop()` calls, since we have the old `style` object here.\n\n if (nextValue !== prevValue) {\n rule.prop(prop, nextValue, forceUpdateOptions);\n }\n } // Remove props.\n\n\n for (var _prop in style) {\n var _nextValue = rule.style[_prop];\n var _prevValue = style[_prop]; // We need to use `force: true` because `rule.style` has been updated during onUpdate hook, so `rule.prop()` will not update the CSSOM rule.\n // We do this comparison to avoid unneeded `rule.prop()` calls, since we have the old `style` object here.\n\n if (_nextValue == null && _nextValue !== _prevValue) {\n rule.prop(_prop, null, forceUpdateOptions);\n }\n }\n }\n }\n /**\n * Convert rules to a CSS string.\n */\n ;\n\n _proto.toString = function toString(options) {\n var str = '';\n var sheet = this.options.sheet;\n var link = sheet ? sheet.options.link : false;\n\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak;\n\n for (var index = 0; index < this.index.length; index++) {\n var rule = this.index[index];\n var css = rule.toString(options); // No need to render an empty rule.\n\n if (!css && !link) continue;\n if (str) str += linebreak;\n str += css;\n }\n\n return str;\n };\n\n return RuleList;\n}();\n\nvar StyleSheet =\n/*#__PURE__*/\nfunction () {\n function StyleSheet(styles, options) {\n this.attached = false;\n this.deployed = false;\n this.classes = {};\n this.keyframes = {};\n this.options = _extends({}, options, {\n sheet: this,\n parent: this,\n classes: this.classes,\n keyframes: this.keyframes\n });\n\n if (options.Renderer) {\n this.renderer = new options.Renderer(this);\n }\n\n this.rules = new RuleList(this.options);\n\n for (var name in styles) {\n this.rules.add(name, styles[name]);\n }\n\n this.rules.process();\n }\n /**\n * Attach renderable to the render tree.\n */\n\n\n var _proto = StyleSheet.prototype;\n\n _proto.attach = function attach() {\n if (this.attached) return this;\n if (this.renderer) this.renderer.attach();\n this.attached = true; // Order is important, because we can't use insertRule API if style element is not attached.\n\n if (!this.deployed) this.deploy();\n return this;\n }\n /**\n * Remove renderable from render tree.\n */\n ;\n\n _proto.detach = function detach() {\n if (!this.attached) return this;\n if (this.renderer) this.renderer.detach();\n this.attached = false;\n return this;\n }\n /**\n * Add a rule to the current stylesheet.\n * Will insert a rule also after the stylesheet has been rendered first time.\n */\n ;\n\n _proto.addRule = function addRule(name, decl, options) {\n var queue = this.queue; // Plugins can create rules.\n // In order to preserve the right order, we need to queue all `.addRule` calls,\n // which happen after the first `rules.add()` call.\n\n if (this.attached && !queue) this.queue = [];\n var rule = this.rules.add(name, decl, options);\n if (!rule) return null;\n this.options.jss.plugins.onProcessRule(rule);\n\n if (this.attached) {\n if (!this.deployed) return rule; // Don't insert rule directly if there is no stringified version yet.\n // It will be inserted all together when .attach is called.\n\n if (queue) queue.push(rule);else {\n this.insertRule(rule);\n\n if (this.queue) {\n this.queue.forEach(this.insertRule, this);\n this.queue = undefined;\n }\n }\n return rule;\n } // We can't add rules to a detached style node.\n // We will redeploy the sheet once user will attach it.\n\n\n this.deployed = false;\n return rule;\n }\n /**\n * Replace a rule in the current stylesheet.\n */\n ;\n\n _proto.replaceRule = function replaceRule(nameOrSelector, decl, options) {\n var oldRule = this.rules.get(nameOrSelector);\n if (!oldRule) return this.addRule(nameOrSelector, decl, options);\n var newRule = this.rules.replace(nameOrSelector, decl, options);\n\n if (newRule) {\n this.options.jss.plugins.onProcessRule(newRule);\n }\n\n if (this.attached) {\n if (!this.deployed) return newRule; // Don't replace / delete rule directly if there is no stringified version yet.\n // It will be inserted all together when .attach is called.\n\n if (this.renderer) {\n if (!newRule) {\n this.renderer.deleteRule(oldRule);\n } else if (oldRule.renderable) {\n this.renderer.replaceRule(oldRule.renderable, newRule);\n }\n }\n\n return newRule;\n } // We can't replace rules to a detached style node.\n // We will redeploy the sheet once user will attach it.\n\n\n this.deployed = false;\n return newRule;\n }\n /**\n * Insert rule into the StyleSheet\n */\n ;\n\n _proto.insertRule = function insertRule(rule) {\n if (this.renderer) {\n this.renderer.insertRule(rule);\n }\n }\n /**\n * Create and add rules.\n * Will render also after Style Sheet was rendered the first time.\n */\n ;\n\n _proto.addRules = function addRules(styles, options) {\n var added = [];\n\n for (var name in styles) {\n var rule = this.addRule(name, styles[name], options);\n if (rule) added.push(rule);\n }\n\n return added;\n }\n /**\n * Get a rule by name or selector.\n */\n ;\n\n _proto.getRule = function getRule(nameOrSelector) {\n return this.rules.get(nameOrSelector);\n }\n /**\n * Delete a rule by name.\n * Returns `true`: if rule has been deleted from the DOM.\n */\n ;\n\n _proto.deleteRule = function deleteRule(name) {\n var rule = typeof name === 'object' ? name : this.rules.get(name);\n\n if (!rule || // Style sheet was created without link: true and attached, in this case we\n // won't be able to remove the CSS rule from the DOM.\n this.attached && !rule.renderable) {\n return false;\n }\n\n this.rules.remove(rule);\n\n if (this.attached && rule.renderable && this.renderer) {\n return this.renderer.deleteRule(rule.renderable);\n }\n\n return true;\n }\n /**\n * Get index of a rule.\n */\n ;\n\n _proto.indexOf = function indexOf(rule) {\n return this.rules.indexOf(rule);\n }\n /**\n * Deploy pure CSS string to a renderable.\n */\n ;\n\n _proto.deploy = function deploy() {\n if (this.renderer) this.renderer.deploy();\n this.deployed = true;\n return this;\n }\n /**\n * Update the function values with a new data.\n */\n ;\n\n _proto.update = function update() {\n var _this$rules;\n\n (_this$rules = this.rules).update.apply(_this$rules, arguments);\n\n return this;\n }\n /**\n * Updates a single rule.\n */\n ;\n\n _proto.updateOne = function updateOne(rule, data, options) {\n this.rules.updateOne(rule, data, options);\n return this;\n }\n /**\n * Convert rules to a CSS string.\n */\n ;\n\n _proto.toString = function toString(options) {\n return this.rules.toString(options);\n };\n\n return StyleSheet;\n}();\n\nvar PluginsRegistry =\n/*#__PURE__*/\nfunction () {\n function PluginsRegistry() {\n this.plugins = {\n internal: [],\n external: []\n };\n this.registry = {};\n }\n\n var _proto = PluginsRegistry.prototype;\n\n /**\n * Call `onCreateRule` hooks and return an object if returned by a hook.\n */\n _proto.onCreateRule = function onCreateRule(name, decl, options) {\n for (var i = 0; i < this.registry.onCreateRule.length; i++) {\n var rule = this.registry.onCreateRule[i](name, decl, options);\n if (rule) return rule;\n }\n\n return null;\n }\n /**\n * Call `onProcessRule` hooks.\n */\n ;\n\n _proto.onProcessRule = function onProcessRule(rule) {\n if (rule.isProcessed) return;\n var sheet = rule.options.sheet;\n\n for (var i = 0; i < this.registry.onProcessRule.length; i++) {\n this.registry.onProcessRule[i](rule, sheet);\n }\n\n if (rule.style) this.onProcessStyle(rule.style, rule, sheet);\n rule.isProcessed = true;\n }\n /**\n * Call `onProcessStyle` hooks.\n */\n ;\n\n _proto.onProcessStyle = function onProcessStyle(style, rule, sheet) {\n for (var i = 0; i < this.registry.onProcessStyle.length; i++) {\n rule.style = this.registry.onProcessStyle[i](rule.style, rule, sheet);\n }\n }\n /**\n * Call `onProcessSheet` hooks.\n */\n ;\n\n _proto.onProcessSheet = function onProcessSheet(sheet) {\n for (var i = 0; i < this.registry.onProcessSheet.length; i++) {\n this.registry.onProcessSheet[i](sheet);\n }\n }\n /**\n * Call `onUpdate` hooks.\n */\n ;\n\n _proto.onUpdate = function onUpdate(data, rule, sheet, options) {\n for (var i = 0; i < this.registry.onUpdate.length; i++) {\n this.registry.onUpdate[i](data, rule, sheet, options);\n }\n }\n /**\n * Call `onChangeValue` hooks.\n */\n ;\n\n _proto.onChangeValue = function onChangeValue(value, prop, rule) {\n var processedValue = value;\n\n for (var i = 0; i < this.registry.onChangeValue.length; i++) {\n processedValue = this.registry.onChangeValue[i](processedValue, prop, rule);\n }\n\n return processedValue;\n }\n /**\n * Register a plugin.\n */\n ;\n\n _proto.use = function use(newPlugin, options) {\n if (options === void 0) {\n options = {\n queue: 'external'\n };\n }\n\n var plugins = this.plugins[options.queue]; // Avoids applying same plugin twice, at least based on ref.\n\n if (plugins.indexOf(newPlugin) !== -1) {\n return;\n }\n\n plugins.push(newPlugin);\n this.registry = [].concat(this.plugins.external, this.plugins.internal).reduce(function (registry, plugin) {\n for (var name in plugin) {\n if (name in registry) {\n registry[name].push(plugin[name]);\n } else {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Unknown hook \\\"\" + name + \"\\\".\") : void 0;\n }\n }\n\n return registry;\n }, {\n onCreateRule: [],\n onProcessRule: [],\n onProcessStyle: [],\n onProcessSheet: [],\n onChangeValue: [],\n onUpdate: []\n });\n };\n\n return PluginsRegistry;\n}();\n\n/**\n * Sheets registry to access all instances in one place.\n */\n\nvar SheetsRegistry =\n/*#__PURE__*/\nfunction () {\n function SheetsRegistry() {\n this.registry = [];\n }\n\n var _proto = SheetsRegistry.prototype;\n\n /**\n * Register a Style Sheet.\n */\n _proto.add = function add(sheet) {\n var registry = this.registry;\n var index = sheet.options.index;\n if (registry.indexOf(sheet) !== -1) return;\n\n if (registry.length === 0 || index >= this.index) {\n registry.push(sheet);\n return;\n } // Find a position.\n\n\n for (var i = 0; i < registry.length; i++) {\n if (registry[i].options.index > index) {\n registry.splice(i, 0, sheet);\n return;\n }\n }\n }\n /**\n * Reset the registry.\n */\n ;\n\n _proto.reset = function reset() {\n this.registry = [];\n }\n /**\n * Remove a Style Sheet.\n */\n ;\n\n _proto.remove = function remove(sheet) {\n var index = this.registry.indexOf(sheet);\n this.registry.splice(index, 1);\n }\n /**\n * Convert all attached sheets to a CSS string.\n */\n ;\n\n _proto.toString = function toString(_temp) {\n var _ref = _temp === void 0 ? {} : _temp,\n attached = _ref.attached,\n options = _objectWithoutPropertiesLoose(_ref, [\"attached\"]);\n\n var _getWhitespaceSymbols = getWhitespaceSymbols(options),\n linebreak = _getWhitespaceSymbols.linebreak;\n\n var css = '';\n\n for (var i = 0; i < this.registry.length; i++) {\n var sheet = this.registry[i];\n\n if (attached != null && sheet.attached !== attached) {\n continue;\n }\n\n if (css) css += linebreak;\n css += sheet.toString(options);\n }\n\n return css;\n };\n\n _createClass(SheetsRegistry, [{\n key: \"index\",\n\n /**\n * Current highest index number.\n */\n get: function get() {\n return this.registry.length === 0 ? 0 : this.registry[this.registry.length - 1].options.index;\n }\n }]);\n\n return SheetsRegistry;\n}();\n\n/**\n * This is a global sheets registry. Only DomRenderer will add sheets to it.\n * On the server one should use an own SheetsRegistry instance and add the\n * sheets to it, because you need to make sure to create a new registry for\n * each request in order to not leak sheets across requests.\n */\n\nvar sheets = new SheetsRegistry();\n\n/* eslint-disable */\n\n/**\n * Now that `globalThis` is available on most platforms\n * (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/globalThis#browser_compatibility)\n * we check for `globalThis` first. `globalThis` is necessary for jss\n * to run in Agoric's secure version of JavaScript (SES). Under SES,\n * `globalThis` exists, but `window`, `self`, and `Function('return\n * this')()` are all undefined for security reasons.\n *\n * https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\n */\nvar globalThis$1 = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' && window.Math === Math ? window : typeof self !== 'undefined' && self.Math === Math ? self : Function('return this')();\n\nvar ns = '2f1acc6c3a606b082e5eef5e54414ffb';\nif (globalThis$1[ns] == null) globalThis$1[ns] = 0; // Bundle may contain multiple JSS versions at the same time. In order to identify\n// the current version with just one short number and use it for classes generation\n// we use a counter. Also it is more accurate, because user can manually reevaluate\n// the module.\n\nvar moduleId = globalThis$1[ns]++;\n\nvar maxRules = 1e10;\n/**\n * Returns a function which generates unique class names based on counters.\n * When new generator function is created, rule counter is reseted.\n * We need to reset the rule counter for SSR for each request.\n */\n\nvar createGenerateId = function createGenerateId(options) {\n if (options === void 0) {\n options = {};\n }\n\n var ruleCounter = 0;\n\n var generateId = function generateId(rule, sheet) {\n ruleCounter += 1;\n\n if (ruleCounter > maxRules) {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] You might have a memory leak. Rule counter is at \" + ruleCounter + \".\") : void 0;\n }\n\n var jssId = '';\n var prefix = '';\n\n if (sheet) {\n if (sheet.options.classNamePrefix) {\n prefix = sheet.options.classNamePrefix;\n }\n\n if (sheet.options.jss.id != null) {\n jssId = String(sheet.options.jss.id);\n }\n }\n\n if (options.minify) {\n // Using \"c\" because a number can't be the first char in a class name.\n return \"\" + (prefix || 'c') + moduleId + jssId + ruleCounter;\n }\n\n return prefix + rule.key + \"-\" + moduleId + (jssId ? \"-\" + jssId : '') + \"-\" + ruleCounter;\n };\n\n return generateId;\n};\n\n/**\n * Cache the value from the first time a function is called.\n */\n\nvar memoize = function memoize(fn) {\n var value;\n return function () {\n if (!value) value = fn();\n return value;\n };\n};\n/**\n * Get a style property value.\n */\n\n\nvar getPropertyValue = function getPropertyValue(cssRule, prop) {\n try {\n // Support CSSTOM.\n if (cssRule.attributeStyleMap) {\n return cssRule.attributeStyleMap.get(prop);\n }\n\n return cssRule.style.getPropertyValue(prop);\n } catch (err) {\n // IE may throw if property is unknown.\n return '';\n }\n};\n/**\n * Set a style property.\n */\n\n\nvar setProperty = function setProperty(cssRule, prop, value) {\n try {\n var cssValue = value;\n\n if (Array.isArray(value)) {\n cssValue = toCssValue(value);\n } // Support CSSTOM.\n\n\n if (cssRule.attributeStyleMap) {\n cssRule.attributeStyleMap.set(prop, cssValue);\n } else {\n var indexOfImportantFlag = cssValue ? cssValue.indexOf('!important') : -1;\n var cssValueWithoutImportantFlag = indexOfImportantFlag > -1 ? cssValue.substr(0, indexOfImportantFlag - 1) : cssValue;\n cssRule.style.setProperty(prop, cssValueWithoutImportantFlag, indexOfImportantFlag > -1 ? 'important' : '');\n }\n } catch (err) {\n // IE may throw if property is unknown.\n return false;\n }\n\n return true;\n};\n/**\n * Remove a style property.\n */\n\n\nvar removeProperty = function removeProperty(cssRule, prop) {\n try {\n // Support CSSTOM.\n if (cssRule.attributeStyleMap) {\n cssRule.attributeStyleMap.delete(prop);\n } else {\n cssRule.style.removeProperty(prop);\n }\n } catch (err) {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] DOMException \\\"\" + err.message + \"\\\" was thrown. Tried to remove property \\\"\" + prop + \"\\\".\") : void 0;\n }\n};\n/**\n * Set the selector.\n */\n\n\nvar setSelector = function setSelector(cssRule, selectorText) {\n cssRule.selectorText = selectorText; // Return false if setter was not successful.\n // Currently works in chrome only.\n\n return cssRule.selectorText === selectorText;\n};\n/**\n * Gets the `head` element upon the first call and caches it.\n * We assume it can't be null.\n */\n\n\nvar getHead = memoize(function () {\n return document.querySelector('head');\n});\n/**\n * Find attached sheet with an index higher than the passed one.\n */\n\nfunction findHigherSheet(registry, options) {\n for (var i = 0; i < registry.length; i++) {\n var sheet = registry[i];\n\n if (sheet.attached && sheet.options.index > options.index && sheet.options.insertionPoint === options.insertionPoint) {\n return sheet;\n }\n }\n\n return null;\n}\n/**\n * Find attached sheet with the highest index.\n */\n\n\nfunction findHighestSheet(registry, options) {\n for (var i = registry.length - 1; i >= 0; i--) {\n var sheet = registry[i];\n\n if (sheet.attached && sheet.options.insertionPoint === options.insertionPoint) {\n return sheet;\n }\n }\n\n return null;\n}\n/**\n * Find a comment with \"jss\" inside.\n */\n\n\nfunction findCommentNode(text) {\n var head = getHead();\n\n for (var i = 0; i < head.childNodes.length; i++) {\n var node = head.childNodes[i];\n\n if (node.nodeType === 8 && node.nodeValue.trim() === text) {\n return node;\n }\n }\n\n return null;\n}\n/**\n * Find a node before which we can insert the sheet.\n */\n\n\nfunction findPrevNode(options) {\n var registry = sheets.registry;\n\n if (registry.length > 0) {\n // Try to insert before the next higher sheet.\n var sheet = findHigherSheet(registry, options);\n\n if (sheet && sheet.renderer) {\n return {\n parent: sheet.renderer.element.parentNode,\n node: sheet.renderer.element\n };\n } // Otherwise insert after the last attached.\n\n\n sheet = findHighestSheet(registry, options);\n\n if (sheet && sheet.renderer) {\n return {\n parent: sheet.renderer.element.parentNode,\n node: sheet.renderer.element.nextSibling\n };\n }\n } // Try to find a comment placeholder if registry is empty.\n\n\n var insertionPoint = options.insertionPoint;\n\n if (insertionPoint && typeof insertionPoint === 'string') {\n var comment = findCommentNode(insertionPoint);\n\n if (comment) {\n return {\n parent: comment.parentNode,\n node: comment.nextSibling\n };\n } // If user specifies an insertion point and it can't be found in the document -\n // bad specificity issues may appear.\n\n\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] Insertion point \\\"\" + insertionPoint + \"\\\" not found.\") : void 0;\n }\n\n return false;\n}\n/**\n * Insert style element into the DOM.\n */\n\n\nfunction insertStyle(style, options) {\n var insertionPoint = options.insertionPoint;\n var nextNode = findPrevNode(options);\n\n if (nextNode !== false && nextNode.parent) {\n nextNode.parent.insertBefore(style, nextNode.node);\n return;\n } // Works with iframes and any node types.\n\n\n if (insertionPoint && typeof insertionPoint.nodeType === 'number') {\n var insertionPointElement = insertionPoint;\n var parentNode = insertionPointElement.parentNode;\n if (parentNode) parentNode.insertBefore(style, insertionPointElement.nextSibling);else process.env.NODE_ENV !== \"production\" ? warning(false, '[JSS] Insertion point is not in the DOM.') : void 0;\n return;\n }\n\n getHead().appendChild(style);\n}\n/**\n * Read jss nonce setting from the page if the user has set it.\n */\n\n\nvar getNonce = memoize(function () {\n var node = document.querySelector('meta[property=\"csp-nonce\"]');\n return node ? node.getAttribute('content') : null;\n});\n\nvar _insertRule = function insertRule(container, rule, index) {\n try {\n if ('insertRule' in container) {\n container.insertRule(rule, index);\n } // Keyframes rule.\n else if ('appendRule' in container) {\n container.appendRule(rule);\n }\n } catch (err) {\n process.env.NODE_ENV !== \"production\" ? warning(false, \"[JSS] \" + err.message) : void 0;\n return false;\n }\n\n return container.cssRules[index];\n};\n\nvar getValidRuleInsertionIndex = function getValidRuleInsertionIndex(container, index) {\n var maxIndex = container.cssRules.length; // In case previous insertion fails, passed index might be wrong\n\n if (index === undefined || index > maxIndex) {\n // eslint-disable-next-line no-param-reassign\n return maxIndex;\n }\n\n return index;\n};\n\nvar createStyle = function createStyle() {\n var el = document.createElement('style'); // Without it, IE will have a broken source order specificity if we\n // insert rules after we insert the style tag.\n // It seems to kick-off the source order specificity algorithm.\n\n el.textContent = '\\n';\n return el;\n};\n\nvar DomRenderer =\n/*#__PURE__*/\nfunction () {\n // Will be empty if link: true option is not set, because\n // it is only for use together with insertRule API.\n function DomRenderer(sheet) {\n this.getPropertyValue = getPropertyValue;\n this.setProperty = setProperty;\n this.removeProperty = removeProperty;\n this.setSelector = setSelector;\n this.hasInsertedRules = false;\n this.cssRules = [];\n // There is no sheet when the renderer is used from a standalone StyleRule.\n if (sheet) sheets.add(sheet);\n this.sheet = sheet;\n\n var _ref = this.sheet ? this.sheet.options : {},\n media = _ref.media,\n meta = _ref.meta,\n element = _ref.element;\n\n this.element = element || createStyle();\n this.element.setAttribute('data-jss', '');\n if (media) this.element.setAttribute('media', media);\n if (meta) this.element.setAttribute('data-meta', meta);\n var nonce = getNonce();\n if (nonce) this.element.setAttribute('nonce', nonce);\n }\n /**\n * Insert style element into render tree.\n */\n\n\n var _proto = DomRenderer.prototype;\n\n _proto.attach = function attach() {\n // In the case the element node is external and it is already in the DOM.\n if (this.element.parentNode || !this.sheet) return;\n insertStyle(this.element, this.sheet.options); // When rules are inserted using `insertRule` API, after `sheet.detach().attach()`\n // most browsers create a new CSSStyleSheet, except of all IEs.\n\n var deployed = Boolean(this.sheet && this.sheet.deployed);\n\n if (this.hasInsertedRules && deployed) {\n this.hasInsertedRules = false;\n this.deploy();\n }\n }\n /**\n * Remove style element from render tree.\n */\n ;\n\n _proto.detach = function detach() {\n if (!this.sheet) return;\n var parentNode = this.element.parentNode;\n if (parentNode) parentNode.removeChild(this.element); // In the most browsers, rules inserted using insertRule() API will be lost when style element is removed.\n // Though IE will keep them and we need a consistent behavior.\n\n if (this.sheet.options.link) {\n this.cssRules = [];\n this.element.textContent = '\\n';\n }\n }\n /**\n * Inject CSS string into element.\n */\n ;\n\n _proto.deploy = function deploy() {\n var sheet = this.sheet;\n if (!sheet) return;\n\n if (sheet.options.link) {\n this.insertRules(sheet.rules);\n return;\n }\n\n this.element.textContent = \"\\n\" + sheet.toString() + \"\\n\";\n }\n /**\n * Insert RuleList into an element.\n */\n ;\n\n _proto.insertRules = function insertRules(rules, nativeParent) {\n for (var i = 0; i < rules.index.length; i++) {\n this.insertRule(rules.index[i], i, nativeParent);\n }\n }\n /**\n * Insert a rule into element.\n */\n ;\n\n _proto.insertRule = function insertRule(rule, index, nativeParent) {\n if (nativeParent === void 0) {\n nativeParent = this.element.sheet;\n }\n\n if (rule.rules) {\n var parent = rule;\n var latestNativeParent = nativeParent;\n\n if (rule.type === 'conditional' || rule.type === 'keyframes') {\n var _insertionIndex = getValidRuleInsertionIndex(nativeParent, index); // We need to render the container without children first.\n\n\n latestNativeParent = _insertRule(nativeParent, parent.toString({\n children: false\n }), _insertionIndex);\n\n if (latestNativeParent === false) {\n return false;\n }\n\n this.refCssRule(rule, _insertionIndex, latestNativeParent);\n }\n\n this.insertRules(parent.rules, latestNativeParent);\n return latestNativeParent;\n }\n\n var ruleStr = rule.toString();\n if (!ruleStr) return false;\n var insertionIndex = getValidRuleInsertionIndex(nativeParent, index);\n\n var nativeRule = _insertRule(nativeParent, ruleStr, insertionIndex);\n\n if (nativeRule === false) {\n return false;\n }\n\n this.hasInsertedRules = true;\n this.refCssRule(rule, insertionIndex, nativeRule);\n return nativeRule;\n };\n\n _proto.refCssRule = function refCssRule(rule, index, cssRule) {\n rule.renderable = cssRule; // We only want to reference the top level rules, deleteRule API doesn't support removing nested rules\n // like rules inside media queries or keyframes\n\n if (rule.options.parent instanceof StyleSheet) {\n this.cssRules.splice(index, 0, cssRule);\n }\n }\n /**\n * Delete a rule.\n */\n ;\n\n _proto.deleteRule = function deleteRule(cssRule) {\n var sheet = this.element.sheet;\n var index = this.indexOf(cssRule);\n if (index === -1) return false;\n sheet.deleteRule(index);\n this.cssRules.splice(index, 1);\n return true;\n }\n /**\n * Get index of a CSS Rule.\n */\n ;\n\n _proto.indexOf = function indexOf(cssRule) {\n return this.cssRules.indexOf(cssRule);\n }\n /**\n * Generate a new CSS rule and replace the existing one.\n */\n ;\n\n _proto.replaceRule = function replaceRule(cssRule, rule) {\n var index = this.indexOf(cssRule);\n if (index === -1) return false;\n this.element.sheet.deleteRule(index);\n this.cssRules.splice(index, 1);\n return this.insertRule(rule, index);\n }\n /**\n * Get all rules elements.\n */\n ;\n\n _proto.getRules = function getRules() {\n return this.element.sheet.cssRules;\n };\n\n return DomRenderer;\n}();\n\nvar instanceCounter = 0;\n\nvar Jss =\n/*#__PURE__*/\nfunction () {\n function Jss(options) {\n this.id = instanceCounter++;\n this.version = \"10.10.0\";\n this.plugins = new PluginsRegistry();\n this.options = {\n id: {\n minify: false\n },\n createGenerateId: createGenerateId,\n Renderer: isInBrowser ? DomRenderer : null,\n plugins: []\n };\n this.generateId = createGenerateId({\n minify: false\n });\n\n for (var i = 0; i < plugins.length; i++) {\n this.plugins.use(plugins[i], {\n queue: 'internal'\n });\n }\n\n this.setup(options);\n }\n /**\n * Prepares various options, applies plugins.\n * Should not be used twice on the same instance, because there is no plugins\n * deduplication logic.\n */\n\n\n var _proto = Jss.prototype;\n\n _proto.setup = function setup(options) {\n if (options === void 0) {\n options = {};\n }\n\n if (options.createGenerateId) {\n this.options.createGenerateId = options.createGenerateId;\n }\n\n if (options.id) {\n this.options.id = _extends({}, this.options.id, options.id);\n }\n\n if (options.createGenerateId || options.id) {\n this.generateId = this.options.createGenerateId(this.options.id);\n }\n\n if (options.insertionPoint != null) this.options.insertionPoint = options.insertionPoint;\n\n if ('Renderer' in options) {\n this.options.Renderer = options.Renderer;\n } // eslint-disable-next-line prefer-spread\n\n\n if (options.plugins) this.use.apply(this, options.plugins);\n return this;\n }\n /**\n * Create a Style Sheet.\n */\n ;\n\n _proto.createStyleSheet = function createStyleSheet(styles, options) {\n if (options === void 0) {\n options = {};\n }\n\n var _options = options,\n index = _options.index;\n\n if (typeof index !== 'number') {\n index = sheets.index === 0 ? 0 : sheets.index + 1;\n }\n\n var sheet = new StyleSheet(styles, _extends({}, options, {\n jss: this,\n generateId: options.generateId || this.generateId,\n insertionPoint: this.options.insertionPoint,\n Renderer: this.options.Renderer,\n index: index\n }));\n this.plugins.onProcessSheet(sheet);\n return sheet;\n }\n /**\n * Detach the Style Sheet and remove it from the registry.\n */\n ;\n\n _proto.removeStyleSheet = function removeStyleSheet(sheet) {\n sheet.detach();\n sheets.remove(sheet);\n return this;\n }\n /**\n * Create a rule without a Style Sheet.\n * [Deprecated] will be removed in the next major version.\n */\n ;\n\n _proto.createRule = function createRule$1(name, style, options) {\n if (style === void 0) {\n style = {};\n }\n\n if (options === void 0) {\n options = {};\n }\n\n // Enable rule without name for inline styles.\n if (typeof name === 'object') {\n return this.createRule(undefined, name, style);\n }\n\n var ruleOptions = _extends({}, options, {\n name: name,\n jss: this,\n Renderer: this.options.Renderer\n });\n\n if (!ruleOptions.generateId) ruleOptions.generateId = this.generateId;\n if (!ruleOptions.classes) ruleOptions.classes = {};\n if (!ruleOptions.keyframes) ruleOptions.keyframes = {};\n\n var rule = createRule(name, style, ruleOptions);\n\n if (rule) this.plugins.onProcessRule(rule);\n return rule;\n }\n /**\n * Register plugin. Passed function will be invoked with a rule instance.\n */\n ;\n\n _proto.use = function use() {\n var _this = this;\n\n for (var _len = arguments.length, plugins = new Array(_len), _key = 0; _key < _len; _key++) {\n plugins[_key] = arguments[_key];\n }\n\n plugins.forEach(function (plugin) {\n _this.plugins.use(plugin);\n });\n return this;\n };\n\n return Jss;\n}();\n\nvar createJss = function createJss(options) {\n return new Jss(options);\n};\n\n/**\n * SheetsManager is like a WeakMap which is designed to count StyleSheet\n * instances and attach/detach automatically.\n * Used in react-jss.\n */\n\nvar SheetsManager =\n/*#__PURE__*/\nfunction () {\n function SheetsManager() {\n this.length = 0;\n this.sheets = new WeakMap();\n }\n\n var _proto = SheetsManager.prototype;\n\n _proto.get = function get(key) {\n var entry = this.sheets.get(key);\n return entry && entry.sheet;\n };\n\n _proto.add = function add(key, sheet) {\n if (this.sheets.has(key)) return;\n this.length++;\n this.sheets.set(key, {\n sheet: sheet,\n refs: 0\n });\n };\n\n _proto.manage = function manage(key) {\n var entry = this.sheets.get(key);\n\n if (entry) {\n if (entry.refs === 0) {\n entry.sheet.attach();\n }\n\n entry.refs++;\n return entry.sheet;\n }\n\n warning(false, \"[JSS] SheetsManager: can't find sheet to manage\");\n return undefined;\n };\n\n _proto.unmanage = function unmanage(key) {\n var entry = this.sheets.get(key);\n\n if (entry) {\n if (entry.refs > 0) {\n entry.refs--;\n if (entry.refs === 0) entry.sheet.detach();\n }\n } else {\n warning(false, \"SheetsManager: can't find sheet to unmanage\");\n }\n };\n\n _createClass(SheetsManager, [{\n key: \"size\",\n get: function get() {\n return this.length;\n }\n }]);\n\n return SheetsManager;\n}();\n\n/**\n* Export a constant indicating if this browser has CSSTOM support.\n* https://developers.google.com/web/updates/2018/03/cssom\n*/\nvar hasCSSTOMSupport = typeof CSS === 'object' && CSS != null && 'number' in CSS;\n\n/**\n * Extracts a styles object with only props that contain function values.\n */\nfunction getDynamicStyles(styles) {\n var to = null;\n\n for (var key in styles) {\n var value = styles[key];\n var type = typeof value;\n\n if (type === 'function') {\n if (!to) to = {};\n to[key] = value;\n } else if (type === 'object' && value !== null && !Array.isArray(value)) {\n var extracted = getDynamicStyles(value);\n\n if (extracted) {\n if (!to) to = {};\n to[key] = extracted;\n }\n }\n }\n\n return to;\n}\n\n/**\n * A better abstraction over CSS.\n *\n * @copyright Oleg Isonen (Slobodskoi) / Isonen 2014-present\n * @website https://github.com/cssinjs/jss\n * @license MIT\n */\nvar index = createJss();\n\nexport default index;\nexport { RuleList, SheetsManager, SheetsRegistry, createJss as create, createGenerateId, createRule, getDynamicStyles, hasCSSTOMSupport, sheets, toCssValue };\n","export default function _objectWithoutPropertiesLoose(source, excluded) {\n if (source == null) return {};\n var target = {};\n var sourceKeys = Object.keys(source);\n var key, i;\n for (i = 0; i < sourceKeys.length; i++) {\n key = sourceKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n target[key] = source[key];\n }\n return target;\n}","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Animation = void 0;\nconst Global_1 = require(\"./Global\");\nconst Util_1 = require(\"./Util\");\nconst now = (function () {\n if (Global_1.glob.performance && Global_1.glob.performance.now) {\n return function () {\n return Global_1.glob.performance.now();\n };\n }\n return function () {\n return new Date().getTime();\n };\n})();\nclass Animation {\n constructor(func, layers) {\n this.id = Animation.animIdCounter++;\n this.frame = {\n time: 0,\n timeDiff: 0,\n lastTime: now(),\n frameRate: 0,\n };\n this.func = func;\n this.setLayers(layers);\n }\n setLayers(layers) {\n let lays = [];\n if (layers) {\n lays = Array.isArray(layers) ? layers : [layers];\n }\n this.layers = lays;\n return this;\n }\n getLayers() {\n return this.layers;\n }\n addLayer(layer) {\n const layers = this.layers;\n const len = layers.length;\n for (let n = 0; n < len; n++) {\n if (layers[n]._id === layer._id) {\n return false;\n }\n }\n this.layers.push(layer);\n return true;\n }\n isRunning() {\n const a = Animation;\n const animations = a.animations;\n const len = animations.length;\n for (let n = 0; n < len; n++) {\n if (animations[n].id === this.id) {\n return true;\n }\n }\n return false;\n }\n start() {\n this.stop();\n this.frame.timeDiff = 0;\n this.frame.lastTime = now();\n Animation._addAnimation(this);\n return this;\n }\n stop() {\n Animation._removeAnimation(this);\n return this;\n }\n _updateFrameObject(time) {\n this.frame.timeDiff = time - this.frame.lastTime;\n this.frame.lastTime = time;\n this.frame.time += this.frame.timeDiff;\n this.frame.frameRate = 1000 / this.frame.timeDiff;\n }\n static _addAnimation(anim) {\n this.animations.push(anim);\n this._handleAnimation();\n }\n static _removeAnimation(anim) {\n const id = anim.id;\n const animations = this.animations;\n const len = animations.length;\n for (let n = 0; n < len; n++) {\n if (animations[n].id === id) {\n this.animations.splice(n, 1);\n break;\n }\n }\n }\n static _runFrames() {\n const layerHash = {};\n const animations = this.animations;\n for (let n = 0; n < animations.length; n++) {\n const anim = animations[n];\n const layers = anim.layers;\n const func = anim.func;\n anim._updateFrameObject(now());\n const layersLen = layers.length;\n let needRedraw;\n if (func) {\n needRedraw = func.call(anim, anim.frame) !== false;\n }\n else {\n needRedraw = true;\n }\n if (!needRedraw) {\n continue;\n }\n for (let i = 0; i < layersLen; i++) {\n const layer = layers[i];\n if (layer._id !== undefined) {\n layerHash[layer._id] = layer;\n }\n }\n }\n for (let key in layerHash) {\n if (!layerHash.hasOwnProperty(key)) {\n continue;\n }\n layerHash[key].batchDraw();\n }\n }\n static _animationLoop() {\n const Anim = Animation;\n if (Anim.animations.length) {\n Anim._runFrames();\n Util_1.Util.requestAnimFrame(Anim._animationLoop);\n }\n else {\n Anim.animRunning = false;\n }\n }\n static _handleAnimation() {\n if (!this.animRunning) {\n this.animRunning = true;\n Util_1.Util.requestAnimFrame(this._animationLoop);\n }\n }\n}\nexports.Animation = Animation;\nAnimation.animations = [];\nAnimation.animIdCounter = 0;\nAnimation.animRunning = false;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.HitCanvas = exports.SceneCanvas = exports.Canvas = void 0;\nconst Util_1 = require(\"./Util\");\nconst Context_1 = require(\"./Context\");\nconst Global_1 = require(\"./Global\");\nconst Factory_1 = require(\"./Factory\");\nconst Validators_1 = require(\"./Validators\");\nvar _pixelRatio;\nfunction getDevicePixelRatio() {\n if (_pixelRatio) {\n return _pixelRatio;\n }\n var canvas = Util_1.Util.createCanvasElement();\n var context = canvas.getContext('2d');\n _pixelRatio = (function () {\n var devicePixelRatio = Global_1.Konva._global.devicePixelRatio || 1, backingStoreRatio = context.webkitBackingStorePixelRatio ||\n context.mozBackingStorePixelRatio ||\n context.msBackingStorePixelRatio ||\n context.oBackingStorePixelRatio ||\n context.backingStorePixelRatio ||\n 1;\n return devicePixelRatio / backingStoreRatio;\n })();\n Util_1.Util.releaseCanvas(canvas);\n return _pixelRatio;\n}\nclass Canvas {\n constructor(config) {\n this.pixelRatio = 1;\n this.width = 0;\n this.height = 0;\n this.isCache = false;\n var conf = config || {};\n var pixelRatio = conf.pixelRatio || Global_1.Konva.pixelRatio || getDevicePixelRatio();\n this.pixelRatio = pixelRatio;\n this._canvas = Util_1.Util.createCanvasElement();\n this._canvas.style.padding = '0';\n this._canvas.style.margin = '0';\n this._canvas.style.border = '0';\n this._canvas.style.background = 'transparent';\n this._canvas.style.position = 'absolute';\n this._canvas.style.top = '0';\n this._canvas.style.left = '0';\n }\n getContext() {\n return this.context;\n }\n getPixelRatio() {\n return this.pixelRatio;\n }\n setPixelRatio(pixelRatio) {\n var previousRatio = this.pixelRatio;\n this.pixelRatio = pixelRatio;\n this.setSize(this.getWidth() / previousRatio, this.getHeight() / previousRatio);\n }\n setWidth(width) {\n this.width = this._canvas.width = width * this.pixelRatio;\n this._canvas.style.width = width + 'px';\n var pixelRatio = this.pixelRatio, _context = this.getContext()._context;\n _context.scale(pixelRatio, pixelRatio);\n }\n setHeight(height) {\n this.height = this._canvas.height = height * this.pixelRatio;\n this._canvas.style.height = height + 'px';\n var pixelRatio = this.pixelRatio, _context = this.getContext()._context;\n _context.scale(pixelRatio, pixelRatio);\n }\n getWidth() {\n return this.width;\n }\n getHeight() {\n return this.height;\n }\n setSize(width, height) {\n this.setWidth(width || 0);\n this.setHeight(height || 0);\n }\n toDataURL(mimeType, quality) {\n try {\n return this._canvas.toDataURL(mimeType, quality);\n }\n catch (e) {\n try {\n return this._canvas.toDataURL();\n }\n catch (err) {\n Util_1.Util.error('Unable to get data URL. ' +\n err.message +\n ' For more info read https://konvajs.org/docs/posts/Tainted_Canvas.html.');\n return '';\n }\n }\n }\n}\nexports.Canvas = Canvas;\nFactory_1.Factory.addGetterSetter(Canvas, 'pixelRatio', undefined, (0, Validators_1.getNumberValidator)());\nclass SceneCanvas extends Canvas {\n constructor(config = { width: 0, height: 0, willReadFrequently: false }) {\n super(config);\n this.context = new Context_1.SceneContext(this, {\n willReadFrequently: config.willReadFrequently,\n });\n this.setSize(config.width, config.height);\n }\n}\nexports.SceneCanvas = SceneCanvas;\nclass HitCanvas extends Canvas {\n constructor(config = { width: 0, height: 0 }) {\n super(config);\n this.hitCanvas = true;\n this.context = new Context_1.HitContext(this);\n this.setSize(config.width, config.height);\n }\n}\nexports.HitCanvas = HitCanvas;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Container = void 0;\nconst Factory_1 = require(\"./Factory\");\nconst Node_1 = require(\"./Node\");\nconst Validators_1 = require(\"./Validators\");\nclass Container extends Node_1.Node {\n constructor() {\n super(...arguments);\n this.children = [];\n }\n getChildren(filterFunc) {\n if (!filterFunc) {\n return this.children || [];\n }\n const children = this.children || [];\n var results = [];\n children.forEach(function (child) {\n if (filterFunc(child)) {\n results.push(child);\n }\n });\n return results;\n }\n hasChildren() {\n return this.getChildren().length > 0;\n }\n removeChildren() {\n this.getChildren().forEach((child) => {\n child.parent = null;\n child.index = 0;\n child.remove();\n });\n this.children = [];\n this._requestDraw();\n return this;\n }\n destroyChildren() {\n this.getChildren().forEach((child) => {\n child.parent = null;\n child.index = 0;\n child.destroy();\n });\n this.children = [];\n this._requestDraw();\n return this;\n }\n add(...children) {\n if (children.length === 0) {\n return this;\n }\n if (children.length > 1) {\n for (var i = 0; i < children.length; i++) {\n this.add(children[i]);\n }\n return this;\n }\n const child = children[0];\n if (child.getParent()) {\n child.moveTo(this);\n return this;\n }\n this._validateAdd(child);\n child.index = this.getChildren().length;\n child.parent = this;\n child._clearCaches();\n this.getChildren().push(child);\n this._fire('add', {\n child: child,\n });\n this._requestDraw();\n return this;\n }\n destroy() {\n if (this.hasChildren()) {\n this.destroyChildren();\n }\n super.destroy();\n return this;\n }\n find(selector) {\n return this._generalFind(selector, false);\n }\n findOne(selector) {\n var result = this._generalFind(selector, true);\n return result.length > 0 ? result[0] : undefined;\n }\n _generalFind(selector, findOne) {\n var retArr = [];\n this._descendants((node) => {\n const valid = node._isMatch(selector);\n if (valid) {\n retArr.push(node);\n }\n if (valid && findOne) {\n return true;\n }\n return false;\n });\n return retArr;\n }\n _descendants(fn) {\n let shouldStop = false;\n const children = this.getChildren();\n for (const child of children) {\n shouldStop = fn(child);\n if (shouldStop) {\n return true;\n }\n if (!child.hasChildren()) {\n continue;\n }\n shouldStop = child._descendants(fn);\n if (shouldStop) {\n return true;\n }\n }\n return false;\n }\n toObject() {\n var obj = Node_1.Node.prototype.toObject.call(this);\n obj.children = [];\n this.getChildren().forEach((child) => {\n obj.children.push(child.toObject());\n });\n return obj;\n }\n isAncestorOf(node) {\n var parent = node.getParent();\n while (parent) {\n if (parent._id === this._id) {\n return true;\n }\n parent = parent.getParent();\n }\n return false;\n }\n clone(obj) {\n var node = Node_1.Node.prototype.clone.call(this, obj);\n this.getChildren().forEach(function (no) {\n node.add(no.clone());\n });\n return node;\n }\n getAllIntersections(pos) {\n var arr = [];\n this.find('Shape').forEach((shape) => {\n if (shape.isVisible() && shape.intersects(pos)) {\n arr.push(shape);\n }\n });\n return arr;\n }\n _clearSelfAndDescendantCache(attr) {\n var _a;\n super._clearSelfAndDescendantCache(attr);\n if (this.isCached()) {\n return;\n }\n (_a = this.children) === null || _a === void 0 ? void 0 : _a.forEach(function (node) {\n node._clearSelfAndDescendantCache(attr);\n });\n }\n _setChildrenIndices() {\n var _a;\n (_a = this.children) === null || _a === void 0 ? void 0 : _a.forEach(function (child, n) {\n child.index = n;\n });\n this._requestDraw();\n }\n drawScene(can, top, bufferCanvas) {\n var layer = this.getLayer(), canvas = can || (layer && layer.getCanvas()), context = canvas && canvas.getContext(), cachedCanvas = this._getCanvasCache(), cachedSceneCanvas = cachedCanvas && cachedCanvas.scene;\n var caching = canvas && canvas.isCache;\n if (!this.isVisible() && !caching) {\n return this;\n }\n if (cachedSceneCanvas) {\n context.save();\n var m = this.getAbsoluteTransform(top).getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n this._drawCachedSceneCanvas(context);\n context.restore();\n }\n else {\n this._drawChildren('drawScene', canvas, top, bufferCanvas);\n }\n return this;\n }\n drawHit(can, top) {\n if (!this.shouldDrawHit(top)) {\n return this;\n }\n var layer = this.getLayer(), canvas = can || (layer && layer.hitCanvas), context = canvas && canvas.getContext(), cachedCanvas = this._getCanvasCache(), cachedHitCanvas = cachedCanvas && cachedCanvas.hit;\n if (cachedHitCanvas) {\n context.save();\n var m = this.getAbsoluteTransform(top).getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n this._drawCachedHitCanvas(context);\n context.restore();\n }\n else {\n this._drawChildren('drawHit', canvas, top);\n }\n return this;\n }\n _drawChildren(drawMethod, canvas, top, bufferCanvas) {\n var _a;\n var context = canvas && canvas.getContext(), clipWidth = this.clipWidth(), clipHeight = this.clipHeight(), clipFunc = this.clipFunc(), hasClip = (typeof clipWidth === 'number' && typeof clipHeight === 'number') ||\n clipFunc;\n const selfCache = top === this;\n if (hasClip) {\n context.save();\n var transform = this.getAbsoluteTransform(top);\n var m = transform.getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n context.beginPath();\n let clipArgs;\n if (clipFunc) {\n clipArgs = clipFunc.call(this, context, this);\n }\n else {\n var clipX = this.clipX();\n var clipY = this.clipY();\n context.rect(clipX || 0, clipY || 0, clipWidth, clipHeight);\n }\n context.clip.apply(context, clipArgs);\n m = transform.copy().invert().getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n }\n var hasComposition = !selfCache &&\n this.globalCompositeOperation() !== 'source-over' &&\n drawMethod === 'drawScene';\n if (hasComposition) {\n context.save();\n context._applyGlobalCompositeOperation(this);\n }\n (_a = this.children) === null || _a === void 0 ? void 0 : _a.forEach(function (child) {\n child[drawMethod](canvas, top, bufferCanvas);\n });\n if (hasComposition) {\n context.restore();\n }\n if (hasClip) {\n context.restore();\n }\n }\n getClientRect(config = {}) {\n var _a;\n var skipTransform = config.skipTransform;\n var relativeTo = config.relativeTo;\n var minX, minY, maxX, maxY;\n var selfRect = {\n x: Infinity,\n y: Infinity,\n width: 0,\n height: 0,\n };\n var that = this;\n (_a = this.children) === null || _a === void 0 ? void 0 : _a.forEach(function (child) {\n if (!child.visible()) {\n return;\n }\n var rect = child.getClientRect({\n relativeTo: that,\n skipShadow: config.skipShadow,\n skipStroke: config.skipStroke,\n });\n if (rect.width === 0 && rect.height === 0) {\n return;\n }\n if (minX === undefined) {\n minX = rect.x;\n minY = rect.y;\n maxX = rect.x + rect.width;\n maxY = rect.y + rect.height;\n }\n else {\n minX = Math.min(minX, rect.x);\n minY = Math.min(minY, rect.y);\n maxX = Math.max(maxX, rect.x + rect.width);\n maxY = Math.max(maxY, rect.y + rect.height);\n }\n });\n var shapes = this.find('Shape');\n var hasVisible = false;\n for (var i = 0; i < shapes.length; i++) {\n var shape = shapes[i];\n if (shape._isVisible(this)) {\n hasVisible = true;\n break;\n }\n }\n if (hasVisible && minX !== undefined) {\n selfRect = {\n x: minX,\n y: minY,\n width: maxX - minX,\n height: maxY - minY,\n };\n }\n else {\n selfRect = {\n x: 0,\n y: 0,\n width: 0,\n height: 0,\n };\n }\n if (!skipTransform) {\n return this._transformedRect(selfRect, relativeTo);\n }\n return selfRect;\n }\n}\nexports.Container = Container;\nFactory_1.Factory.addComponentsGetterSetter(Container, 'clip', [\n 'x',\n 'y',\n 'width',\n 'height',\n]);\nFactory_1.Factory.addGetterSetter(Container, 'clipX', undefined, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Container, 'clipY', undefined, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Container, 'clipWidth', undefined, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Container, 'clipHeight', undefined, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Container, 'clipFunc');\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.HitContext = exports.SceneContext = exports.Context = void 0;\nconst Util_1 = require(\"./Util\");\nconst Global_1 = require(\"./Global\");\nfunction simplifyArray(arr) {\n var retArr = [], len = arr.length, util = Util_1.Util, n, val;\n for (n = 0; n < len; n++) {\n val = arr[n];\n if (util._isNumber(val)) {\n val = Math.round(val * 1000) / 1000;\n }\n else if (!util._isString(val)) {\n val = val + '';\n }\n retArr.push(val);\n }\n return retArr;\n}\nvar COMMA = ',', OPEN_PAREN = '(', CLOSE_PAREN = ')', OPEN_PAREN_BRACKET = '([', CLOSE_BRACKET_PAREN = '])', SEMICOLON = ';', DOUBLE_PAREN = '()', EQUALS = '=', CONTEXT_METHODS = [\n 'arc',\n 'arcTo',\n 'beginPath',\n 'bezierCurveTo',\n 'clearRect',\n 'clip',\n 'closePath',\n 'createLinearGradient',\n 'createPattern',\n 'createRadialGradient',\n 'drawImage',\n 'ellipse',\n 'fill',\n 'fillText',\n 'getImageData',\n 'createImageData',\n 'lineTo',\n 'moveTo',\n 'putImageData',\n 'quadraticCurveTo',\n 'rect',\n 'roundRect',\n 'restore',\n 'rotate',\n 'save',\n 'scale',\n 'setLineDash',\n 'setTransform',\n 'stroke',\n 'strokeText',\n 'transform',\n 'translate',\n];\nvar CONTEXT_PROPERTIES = [\n 'fillStyle',\n 'strokeStyle',\n 'shadowColor',\n 'shadowBlur',\n 'shadowOffsetX',\n 'shadowOffsetY',\n 'letterSpacing',\n 'lineCap',\n 'lineDashOffset',\n 'lineJoin',\n 'lineWidth',\n 'miterLimit',\n 'direction',\n 'font',\n 'textAlign',\n 'textBaseline',\n 'globalAlpha',\n 'globalCompositeOperation',\n 'imageSmoothingEnabled',\n];\nconst traceArrMax = 100;\nclass Context {\n constructor(canvas) {\n this.canvas = canvas;\n if (Global_1.Konva.enableTrace) {\n this.traceArr = [];\n this._enableTrace();\n }\n }\n fillShape(shape) {\n if (shape.fillEnabled()) {\n this._fill(shape);\n }\n }\n _fill(shape) {\n }\n strokeShape(shape) {\n if (shape.hasStroke()) {\n this._stroke(shape);\n }\n }\n _stroke(shape) {\n }\n fillStrokeShape(shape) {\n if (shape.attrs.fillAfterStrokeEnabled) {\n this.strokeShape(shape);\n this.fillShape(shape);\n }\n else {\n this.fillShape(shape);\n this.strokeShape(shape);\n }\n }\n getTrace(relaxed, rounded) {\n var traceArr = this.traceArr, len = traceArr.length, str = '', n, trace, method, args;\n for (n = 0; n < len; n++) {\n trace = traceArr[n];\n method = trace.method;\n if (method) {\n args = trace.args;\n str += method;\n if (relaxed) {\n str += DOUBLE_PAREN;\n }\n else {\n if (Util_1.Util._isArray(args[0])) {\n str += OPEN_PAREN_BRACKET + args.join(COMMA) + CLOSE_BRACKET_PAREN;\n }\n else {\n if (rounded) {\n args = args.map((a) => typeof a === 'number' ? Math.floor(a) : a);\n }\n str += OPEN_PAREN + args.join(COMMA) + CLOSE_PAREN;\n }\n }\n }\n else {\n str += trace.property;\n if (!relaxed) {\n str += EQUALS + trace.val;\n }\n }\n str += SEMICOLON;\n }\n return str;\n }\n clearTrace() {\n this.traceArr = [];\n }\n _trace(str) {\n var traceArr = this.traceArr, len;\n traceArr.push(str);\n len = traceArr.length;\n if (len >= traceArrMax) {\n traceArr.shift();\n }\n }\n reset() {\n var pixelRatio = this.getCanvas().getPixelRatio();\n this.setTransform(1 * pixelRatio, 0, 0, 1 * pixelRatio, 0, 0);\n }\n getCanvas() {\n return this.canvas;\n }\n clear(bounds) {\n var canvas = this.getCanvas();\n if (bounds) {\n this.clearRect(bounds.x || 0, bounds.y || 0, bounds.width || 0, bounds.height || 0);\n }\n else {\n this.clearRect(0, 0, canvas.getWidth() / canvas.pixelRatio, canvas.getHeight() / canvas.pixelRatio);\n }\n }\n _applyLineCap(shape) {\n const lineCap = shape.attrs.lineCap;\n if (lineCap) {\n this.setAttr('lineCap', lineCap);\n }\n }\n _applyOpacity(shape) {\n var absOpacity = shape.getAbsoluteOpacity();\n if (absOpacity !== 1) {\n this.setAttr('globalAlpha', absOpacity);\n }\n }\n _applyLineJoin(shape) {\n const lineJoin = shape.attrs.lineJoin;\n if (lineJoin) {\n this.setAttr('lineJoin', lineJoin);\n }\n }\n setAttr(attr, val) {\n this._context[attr] = val;\n }\n arc(x, y, radius, startAngle, endAngle, counterClockwise) {\n this._context.arc(x, y, radius, startAngle, endAngle, counterClockwise);\n }\n arcTo(x1, y1, x2, y2, radius) {\n this._context.arcTo(x1, y1, x2, y2, radius);\n }\n beginPath() {\n this._context.beginPath();\n }\n bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y) {\n this._context.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, x, y);\n }\n clearRect(x, y, width, height) {\n this._context.clearRect(x, y, width, height);\n }\n clip(...args) {\n this._context.clip.apply(this._context, args);\n }\n closePath() {\n this._context.closePath();\n }\n createImageData(width, height) {\n var a = arguments;\n if (a.length === 2) {\n return this._context.createImageData(width, height);\n }\n else if (a.length === 1) {\n return this._context.createImageData(width);\n }\n }\n createLinearGradient(x0, y0, x1, y1) {\n return this._context.createLinearGradient(x0, y0, x1, y1);\n }\n createPattern(image, repetition) {\n return this._context.createPattern(image, repetition);\n }\n createRadialGradient(x0, y0, r0, x1, y1, r1) {\n return this._context.createRadialGradient(x0, y0, r0, x1, y1, r1);\n }\n drawImage(image, sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight) {\n var a = arguments, _context = this._context;\n if (a.length === 3) {\n _context.drawImage(image, sx, sy);\n }\n else if (a.length === 5) {\n _context.drawImage(image, sx, sy, sWidth, sHeight);\n }\n else if (a.length === 9) {\n _context.drawImage(image, sx, sy, sWidth, sHeight, dx, dy, dWidth, dHeight);\n }\n }\n ellipse(x, y, radiusX, radiusY, rotation, startAngle, endAngle, counterclockwise) {\n this._context.ellipse(x, y, radiusX, radiusY, rotation, startAngle, endAngle, counterclockwise);\n }\n isPointInPath(x, y, path, fillRule) {\n if (path) {\n return this._context.isPointInPath(path, x, y, fillRule);\n }\n return this._context.isPointInPath(x, y, fillRule);\n }\n fill(...args) {\n this._context.fill.apply(this._context, args);\n }\n fillRect(x, y, width, height) {\n this._context.fillRect(x, y, width, height);\n }\n strokeRect(x, y, width, height) {\n this._context.strokeRect(x, y, width, height);\n }\n fillText(text, x, y, maxWidth) {\n if (maxWidth) {\n this._context.fillText(text, x, y, maxWidth);\n }\n else {\n this._context.fillText(text, x, y);\n }\n }\n measureText(text) {\n return this._context.measureText(text);\n }\n getImageData(sx, sy, sw, sh) {\n return this._context.getImageData(sx, sy, sw, sh);\n }\n lineTo(x, y) {\n this._context.lineTo(x, y);\n }\n moveTo(x, y) {\n this._context.moveTo(x, y);\n }\n rect(x, y, width, height) {\n this._context.rect(x, y, width, height);\n }\n roundRect(x, y, width, height, radii) {\n this._context.roundRect(x, y, width, height, radii);\n }\n putImageData(imageData, dx, dy) {\n this._context.putImageData(imageData, dx, dy);\n }\n quadraticCurveTo(cpx, cpy, x, y) {\n this._context.quadraticCurveTo(cpx, cpy, x, y);\n }\n restore() {\n this._context.restore();\n }\n rotate(angle) {\n this._context.rotate(angle);\n }\n save() {\n this._context.save();\n }\n scale(x, y) {\n this._context.scale(x, y);\n }\n setLineDash(segments) {\n if (this._context.setLineDash) {\n this._context.setLineDash(segments);\n }\n else if ('mozDash' in this._context) {\n this._context['mozDash'] = segments;\n }\n else if ('webkitLineDash' in this._context) {\n this._context['webkitLineDash'] = segments;\n }\n }\n getLineDash() {\n return this._context.getLineDash();\n }\n setTransform(a, b, c, d, e, f) {\n this._context.setTransform(a, b, c, d, e, f);\n }\n stroke(path2d) {\n if (path2d) {\n this._context.stroke(path2d);\n }\n else {\n this._context.stroke();\n }\n }\n strokeText(text, x, y, maxWidth) {\n this._context.strokeText(text, x, y, maxWidth);\n }\n transform(a, b, c, d, e, f) {\n this._context.transform(a, b, c, d, e, f);\n }\n translate(x, y) {\n this._context.translate(x, y);\n }\n _enableTrace() {\n var that = this, len = CONTEXT_METHODS.length, origSetter = this.setAttr, n, args;\n var func = function (methodName) {\n var origMethod = that[methodName], ret;\n that[methodName] = function () {\n args = simplifyArray(Array.prototype.slice.call(arguments, 0));\n ret = origMethod.apply(that, arguments);\n that._trace({\n method: methodName,\n args: args,\n });\n return ret;\n };\n };\n for (n = 0; n < len; n++) {\n func(CONTEXT_METHODS[n]);\n }\n that.setAttr = function () {\n origSetter.apply(that, arguments);\n var prop = arguments[0];\n var val = arguments[1];\n if (prop === 'shadowOffsetX' ||\n prop === 'shadowOffsetY' ||\n prop === 'shadowBlur') {\n val = val / this.canvas.getPixelRatio();\n }\n that._trace({\n property: prop,\n val: val,\n });\n };\n }\n _applyGlobalCompositeOperation(node) {\n const op = node.attrs.globalCompositeOperation;\n var def = !op || op === 'source-over';\n if (!def) {\n this.setAttr('globalCompositeOperation', op);\n }\n }\n}\nexports.Context = Context;\nCONTEXT_PROPERTIES.forEach(function (prop) {\n Object.defineProperty(Context.prototype, prop, {\n get() {\n return this._context[prop];\n },\n set(val) {\n this._context[prop] = val;\n },\n });\n});\nclass SceneContext extends Context {\n constructor(canvas, { willReadFrequently = false } = {}) {\n super(canvas);\n this._context = canvas._canvas.getContext('2d', {\n willReadFrequently,\n });\n }\n _fillColor(shape) {\n var fill = shape.fill();\n this.setAttr('fillStyle', fill);\n shape._fillFunc(this);\n }\n _fillPattern(shape) {\n this.setAttr('fillStyle', shape._getFillPattern());\n shape._fillFunc(this);\n }\n _fillLinearGradient(shape) {\n var grd = shape._getLinearGradient();\n if (grd) {\n this.setAttr('fillStyle', grd);\n shape._fillFunc(this);\n }\n }\n _fillRadialGradient(shape) {\n const grd = shape._getRadialGradient();\n if (grd) {\n this.setAttr('fillStyle', grd);\n shape._fillFunc(this);\n }\n }\n _fill(shape) {\n const hasColor = shape.fill(), fillPriority = shape.getFillPriority();\n if (hasColor && fillPriority === 'color') {\n this._fillColor(shape);\n return;\n }\n const hasPattern = shape.getFillPatternImage();\n if (hasPattern && fillPriority === 'pattern') {\n this._fillPattern(shape);\n return;\n }\n const hasLinearGradient = shape.getFillLinearGradientColorStops();\n if (hasLinearGradient && fillPriority === 'linear-gradient') {\n this._fillLinearGradient(shape);\n return;\n }\n const hasRadialGradient = shape.getFillRadialGradientColorStops();\n if (hasRadialGradient && fillPriority === 'radial-gradient') {\n this._fillRadialGradient(shape);\n return;\n }\n if (hasColor) {\n this._fillColor(shape);\n }\n else if (hasPattern) {\n this._fillPattern(shape);\n }\n else if (hasLinearGradient) {\n this._fillLinearGradient(shape);\n }\n else if (hasRadialGradient) {\n this._fillRadialGradient(shape);\n }\n }\n _strokeLinearGradient(shape) {\n const start = shape.getStrokeLinearGradientStartPoint(), end = shape.getStrokeLinearGradientEndPoint(), colorStops = shape.getStrokeLinearGradientColorStops(), grd = this.createLinearGradient(start.x, start.y, end.x, end.y);\n if (colorStops) {\n for (var n = 0; n < colorStops.length; n += 2) {\n grd.addColorStop(colorStops[n], colorStops[n + 1]);\n }\n this.setAttr('strokeStyle', grd);\n }\n }\n _stroke(shape) {\n var dash = shape.dash(), strokeScaleEnabled = shape.getStrokeScaleEnabled();\n if (shape.hasStroke()) {\n if (!strokeScaleEnabled) {\n this.save();\n var pixelRatio = this.getCanvas().getPixelRatio();\n this.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n }\n this._applyLineCap(shape);\n if (dash && shape.dashEnabled()) {\n this.setLineDash(dash);\n this.setAttr('lineDashOffset', shape.dashOffset());\n }\n this.setAttr('lineWidth', shape.strokeWidth());\n if (!shape.getShadowForStrokeEnabled()) {\n this.setAttr('shadowColor', 'rgba(0,0,0,0)');\n }\n var hasLinearGradient = shape.getStrokeLinearGradientColorStops();\n if (hasLinearGradient) {\n this._strokeLinearGradient(shape);\n }\n else {\n this.setAttr('strokeStyle', shape.stroke());\n }\n shape._strokeFunc(this);\n if (!strokeScaleEnabled) {\n this.restore();\n }\n }\n }\n _applyShadow(shape) {\n var _a, _b, _c;\n var color = (_a = shape.getShadowRGBA()) !== null && _a !== void 0 ? _a : 'black', blur = (_b = shape.getShadowBlur()) !== null && _b !== void 0 ? _b : 5, offset = (_c = shape.getShadowOffset()) !== null && _c !== void 0 ? _c : {\n x: 0,\n y: 0,\n }, scale = shape.getAbsoluteScale(), ratio = this.canvas.getPixelRatio(), scaleX = scale.x * ratio, scaleY = scale.y * ratio;\n this.setAttr('shadowColor', color);\n this.setAttr('shadowBlur', blur * Math.min(Math.abs(scaleX), Math.abs(scaleY)));\n this.setAttr('shadowOffsetX', offset.x * scaleX);\n this.setAttr('shadowOffsetY', offset.y * scaleY);\n }\n}\nexports.SceneContext = SceneContext;\nclass HitContext extends Context {\n constructor(canvas) {\n super(canvas);\n this._context = canvas._canvas.getContext('2d', {\n willReadFrequently: true,\n });\n }\n _fill(shape) {\n this.save();\n this.setAttr('fillStyle', shape.colorKey);\n shape._fillFuncHit(this);\n this.restore();\n }\n strokeShape(shape) {\n if (shape.hasHitStroke()) {\n this._stroke(shape);\n }\n }\n _stroke(shape) {\n if (shape.hasHitStroke()) {\n const strokeScaleEnabled = shape.getStrokeScaleEnabled();\n if (!strokeScaleEnabled) {\n this.save();\n var pixelRatio = this.getCanvas().getPixelRatio();\n this.setTransform(pixelRatio, 0, 0, pixelRatio, 0, 0);\n }\n this._applyLineCap(shape);\n var hitStrokeWidth = shape.hitStrokeWidth();\n var strokeWidth = hitStrokeWidth === 'auto' ? shape.strokeWidth() : hitStrokeWidth;\n this.setAttr('lineWidth', strokeWidth);\n this.setAttr('strokeStyle', shape.colorKey);\n shape._strokeFuncHit(this);\n if (!strokeScaleEnabled) {\n this.restore();\n }\n }\n }\n}\nexports.HitContext = HitContext;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Konva = void 0;\nvar _CoreInternals_1 = require(\"./_CoreInternals\");\nObject.defineProperty(exports, \"Konva\", { enumerable: true, get: function () { return _CoreInternals_1.Konva; } });\nconst _CoreInternals_2 = require(\"./_CoreInternals\");\nmodule.exports = _CoreInternals_2.Konva;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.DD = void 0;\nconst Global_1 = require(\"./Global\");\nconst Util_1 = require(\"./Util\");\nexports.DD = {\n get isDragging() {\n var flag = false;\n exports.DD._dragElements.forEach((elem) => {\n if (elem.dragStatus === 'dragging') {\n flag = true;\n }\n });\n return flag;\n },\n justDragged: false,\n get node() {\n var node;\n exports.DD._dragElements.forEach((elem) => {\n node = elem.node;\n });\n return node;\n },\n _dragElements: new Map(),\n _drag(evt) {\n const nodesToFireEvents = [];\n exports.DD._dragElements.forEach((elem, key) => {\n const { node } = elem;\n const stage = node.getStage();\n stage.setPointersPositions(evt);\n if (elem.pointerId === undefined) {\n elem.pointerId = Util_1.Util._getFirstPointerId(evt);\n }\n const pos = stage._changedPointerPositions.find((pos) => pos.id === elem.pointerId);\n if (!pos) {\n return;\n }\n if (elem.dragStatus !== 'dragging') {\n var dragDistance = node.dragDistance();\n var distance = Math.max(Math.abs(pos.x - elem.startPointerPos.x), Math.abs(pos.y - elem.startPointerPos.y));\n if (distance < dragDistance) {\n return;\n }\n node.startDrag({ evt });\n if (!node.isDragging()) {\n return;\n }\n }\n node._setDragPosition(evt, elem);\n nodesToFireEvents.push(node);\n });\n nodesToFireEvents.forEach((node) => {\n node.fire('dragmove', {\n type: 'dragmove',\n target: node,\n evt: evt,\n }, true);\n });\n },\n _endDragBefore(evt) {\n const drawNodes = [];\n exports.DD._dragElements.forEach((elem) => {\n const { node } = elem;\n const stage = node.getStage();\n if (evt) {\n stage.setPointersPositions(evt);\n }\n const pos = stage._changedPointerPositions.find((pos) => pos.id === elem.pointerId);\n if (!pos) {\n return;\n }\n if (elem.dragStatus === 'dragging' || elem.dragStatus === 'stopped') {\n exports.DD.justDragged = true;\n Global_1.Konva._mouseListenClick = false;\n Global_1.Konva._touchListenClick = false;\n Global_1.Konva._pointerListenClick = false;\n elem.dragStatus = 'stopped';\n }\n const drawNode = elem.node.getLayer() ||\n (elem.node instanceof Global_1.Konva['Stage'] && elem.node);\n if (drawNode && drawNodes.indexOf(drawNode) === -1) {\n drawNodes.push(drawNode);\n }\n });\n drawNodes.forEach((drawNode) => {\n drawNode.draw();\n });\n },\n _endDragAfter(evt) {\n exports.DD._dragElements.forEach((elem, key) => {\n if (elem.dragStatus === 'stopped') {\n elem.node.fire('dragend', {\n type: 'dragend',\n target: elem.node,\n evt: evt,\n }, true);\n }\n if (elem.dragStatus !== 'dragging') {\n exports.DD._dragElements.delete(key);\n }\n });\n },\n};\nif (Global_1.Konva.isBrowser) {\n window.addEventListener('mouseup', exports.DD._endDragBefore, true);\n window.addEventListener('touchend', exports.DD._endDragBefore, true);\n window.addEventListener('mousemove', exports.DD._drag);\n window.addEventListener('touchmove', exports.DD._drag);\n window.addEventListener('mouseup', exports.DD._endDragAfter, false);\n window.addEventListener('touchend', exports.DD._endDragAfter, false);\n}\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Factory = void 0;\nconst Util_1 = require(\"./Util\");\nconst Validators_1 = require(\"./Validators\");\nvar GET = 'get', SET = 'set';\nexports.Factory = {\n addGetterSetter(constructor, attr, def, validator, after) {\n exports.Factory.addGetter(constructor, attr, def);\n exports.Factory.addSetter(constructor, attr, validator, after);\n exports.Factory.addOverloadedGetterSetter(constructor, attr);\n },\n addGetter(constructor, attr, def) {\n var method = GET + Util_1.Util._capitalize(attr);\n constructor.prototype[method] =\n constructor.prototype[method] ||\n function () {\n var val = this.attrs[attr];\n return val === undefined ? def : val;\n };\n },\n addSetter(constructor, attr, validator, after) {\n var method = SET + Util_1.Util._capitalize(attr);\n if (!constructor.prototype[method]) {\n exports.Factory.overWriteSetter(constructor, attr, validator, after);\n }\n },\n overWriteSetter(constructor, attr, validator, after) {\n var method = SET + Util_1.Util._capitalize(attr);\n constructor.prototype[method] = function (val) {\n if (validator && val !== undefined && val !== null) {\n val = validator.call(this, val, attr);\n }\n this._setAttr(attr, val);\n if (after) {\n after.call(this);\n }\n return this;\n };\n },\n addComponentsGetterSetter(constructor, attr, components, validator, after) {\n var len = components.length, capitalize = Util_1.Util._capitalize, getter = GET + capitalize(attr), setter = SET + capitalize(attr), n, component;\n constructor.prototype[getter] = function () {\n var ret = {};\n for (n = 0; n < len; n++) {\n component = components[n];\n ret[component] = this.getAttr(attr + capitalize(component));\n }\n return ret;\n };\n var basicValidator = (0, Validators_1.getComponentValidator)(components);\n constructor.prototype[setter] = function (val) {\n var oldVal = this.attrs[attr], key;\n if (validator) {\n val = validator.call(this, val);\n }\n if (basicValidator) {\n basicValidator.call(this, val, attr);\n }\n for (key in val) {\n if (!val.hasOwnProperty(key)) {\n continue;\n }\n this._setAttr(attr + capitalize(key), val[key]);\n }\n if (!val) {\n components.forEach((component) => {\n this._setAttr(attr + capitalize(component), undefined);\n });\n }\n this._fireChangeEvent(attr, oldVal, val);\n if (after) {\n after.call(this);\n }\n return this;\n };\n exports.Factory.addOverloadedGetterSetter(constructor, attr);\n },\n addOverloadedGetterSetter(constructor, attr) {\n var capitalizedAttr = Util_1.Util._capitalize(attr), setter = SET + capitalizedAttr, getter = GET + capitalizedAttr;\n constructor.prototype[attr] = function () {\n if (arguments.length) {\n this[setter](arguments[0]);\n return this;\n }\n return this[getter]();\n };\n },\n addDeprecatedGetterSetter(constructor, attr, def, validator) {\n Util_1.Util.error('Adding deprecated ' + attr);\n var method = GET + Util_1.Util._capitalize(attr);\n var message = attr +\n ' property is deprecated and will be removed soon. Look at Konva change log for more information.';\n constructor.prototype[method] = function () {\n Util_1.Util.error(message);\n var val = this.attrs[attr];\n return val === undefined ? def : val;\n };\n exports.Factory.addSetter(constructor, attr, validator, function () {\n Util_1.Util.error(message);\n });\n exports.Factory.addOverloadedGetterSetter(constructor, attr);\n },\n backCompat(constructor, methods) {\n Util_1.Util.each(methods, function (oldMethodName, newMethodName) {\n var method = constructor.prototype[newMethodName];\n var oldGetter = GET + Util_1.Util._capitalize(oldMethodName);\n var oldSetter = SET + Util_1.Util._capitalize(oldMethodName);\n function deprecated() {\n method.apply(this, arguments);\n Util_1.Util.error('\"' +\n oldMethodName +\n '\" method is deprecated and will be removed soon. Use \"\"' +\n newMethodName +\n '\" instead.');\n }\n constructor.prototype[oldMethodName] = deprecated;\n constructor.prototype[oldGetter] = deprecated;\n constructor.prototype[oldSetter] = deprecated;\n });\n },\n afterSetFilter() {\n this._filterUpToDate = false;\n },\n};\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.FastLayer = void 0;\nconst Util_1 = require(\"./Util\");\nconst Layer_1 = require(\"./Layer\");\nconst Global_1 = require(\"./Global\");\nclass FastLayer extends Layer_1.Layer {\n constructor(attrs) {\n super(attrs);\n this.listening(false);\n Util_1.Util.warn('Konva.Fast layer is deprecated. Please use \"new Konva.Layer({ listening: false })\" instead.');\n }\n}\nexports.FastLayer = FastLayer;\nFastLayer.prototype.nodeType = 'FastLayer';\n(0, Global_1._registerNode)(FastLayer);\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports._registerNode = exports.Konva = exports.glob = void 0;\nconst PI_OVER_180 = Math.PI / 180;\nfunction detectBrowser() {\n return (typeof window !== 'undefined' &&\n ({}.toString.call(window) === '[object Window]' ||\n {}.toString.call(window) === '[object global]'));\n}\nexports.glob = typeof global !== 'undefined'\n ? global\n : typeof window !== 'undefined'\n ? window\n : typeof WorkerGlobalScope !== 'undefined'\n ? self\n : {};\nexports.Konva = {\n _global: exports.glob,\n version: '9.3.6',\n isBrowser: detectBrowser(),\n isUnminified: /param/.test(function (param) { }.toString()),\n dblClickWindow: 400,\n getAngle(angle) {\n return exports.Konva.angleDeg ? angle * PI_OVER_180 : angle;\n },\n enableTrace: false,\n pointerEventsEnabled: true,\n autoDrawEnabled: true,\n hitOnDragEnabled: false,\n capturePointerEventsEnabled: false,\n _mouseListenClick: false,\n _touchListenClick: false,\n _pointerListenClick: false,\n _mouseInDblClickWindow: false,\n _touchInDblClickWindow: false,\n _pointerInDblClickWindow: false,\n _mouseDblClickPointerId: null,\n _touchDblClickPointerId: null,\n _pointerDblClickPointerId: null,\n pixelRatio: (typeof window !== 'undefined' && window.devicePixelRatio) || 1,\n dragDistance: 3,\n angleDeg: true,\n showWarnings: true,\n dragButtons: [0, 1],\n isDragging() {\n return exports.Konva['DD'].isDragging;\n },\n isTransforming() {\n var _a;\n return (_a = exports.Konva['Transformer']) === null || _a === void 0 ? void 0 : _a.isTransforming();\n },\n isDragReady() {\n return !!exports.Konva['DD'].node;\n },\n releaseCanvasOnDestroy: true,\n document: exports.glob.document,\n _injectGlobal(Konva) {\n exports.glob.Konva = Konva;\n },\n};\nconst _registerNode = (NodeClass) => {\n exports.Konva[NodeClass.prototype.getClassName()] = NodeClass;\n};\nexports._registerNode = _registerNode;\nexports.Konva._injectGlobal(exports.Konva);\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Group = void 0;\nconst Util_1 = require(\"./Util\");\nconst Container_1 = require(\"./Container\");\nconst Global_1 = require(\"./Global\");\nclass Group extends Container_1.Container {\n _validateAdd(child) {\n var type = child.getType();\n if (type !== 'Group' && type !== 'Shape') {\n Util_1.Util.throw('You may only add groups and shapes to groups.');\n }\n }\n}\nexports.Group = Group;\nGroup.prototype.nodeType = 'Group';\n(0, Global_1._registerNode)(Group);\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Layer = void 0;\nconst Util_1 = require(\"./Util\");\nconst Container_1 = require(\"./Container\");\nconst Node_1 = require(\"./Node\");\nconst Factory_1 = require(\"./Factory\");\nconst Canvas_1 = require(\"./Canvas\");\nconst Validators_1 = require(\"./Validators\");\nconst Shape_1 = require(\"./Shape\");\nconst Global_1 = require(\"./Global\");\nvar HASH = '#', BEFORE_DRAW = 'beforeDraw', DRAW = 'draw', INTERSECTION_OFFSETS = [\n { x: 0, y: 0 },\n { x: -1, y: -1 },\n { x: 1, y: -1 },\n { x: 1, y: 1 },\n { x: -1, y: 1 },\n], INTERSECTION_OFFSETS_LEN = INTERSECTION_OFFSETS.length;\nclass Layer extends Container_1.Container {\n constructor(config) {\n super(config);\n this.canvas = new Canvas_1.SceneCanvas();\n this.hitCanvas = new Canvas_1.HitCanvas({\n pixelRatio: 1,\n });\n this._waitingForDraw = false;\n this.on('visibleChange.konva', this._checkVisibility);\n this._checkVisibility();\n this.on('imageSmoothingEnabledChange.konva', this._setSmoothEnabled);\n this._setSmoothEnabled();\n }\n createPNGStream() {\n const c = this.canvas._canvas;\n return c.createPNGStream();\n }\n getCanvas() {\n return this.canvas;\n }\n getNativeCanvasElement() {\n return this.canvas._canvas;\n }\n getHitCanvas() {\n return this.hitCanvas;\n }\n getContext() {\n return this.getCanvas().getContext();\n }\n clear(bounds) {\n this.getContext().clear(bounds);\n this.getHitCanvas().getContext().clear(bounds);\n return this;\n }\n setZIndex(index) {\n super.setZIndex(index);\n var stage = this.getStage();\n if (stage && stage.content) {\n stage.content.removeChild(this.getNativeCanvasElement());\n if (index < stage.children.length - 1) {\n stage.content.insertBefore(this.getNativeCanvasElement(), stage.children[index + 1].getCanvas()._canvas);\n }\n else {\n stage.content.appendChild(this.getNativeCanvasElement());\n }\n }\n return this;\n }\n moveToTop() {\n Node_1.Node.prototype.moveToTop.call(this);\n var stage = this.getStage();\n if (stage && stage.content) {\n stage.content.removeChild(this.getNativeCanvasElement());\n stage.content.appendChild(this.getNativeCanvasElement());\n }\n return true;\n }\n moveUp() {\n var moved = Node_1.Node.prototype.moveUp.call(this);\n if (!moved) {\n return false;\n }\n var stage = this.getStage();\n if (!stage || !stage.content) {\n return false;\n }\n stage.content.removeChild(this.getNativeCanvasElement());\n if (this.index < stage.children.length - 1) {\n stage.content.insertBefore(this.getNativeCanvasElement(), stage.children[this.index + 1].getCanvas()._canvas);\n }\n else {\n stage.content.appendChild(this.getNativeCanvasElement());\n }\n return true;\n }\n moveDown() {\n if (Node_1.Node.prototype.moveDown.call(this)) {\n var stage = this.getStage();\n if (stage) {\n var children = stage.children;\n if (stage.content) {\n stage.content.removeChild(this.getNativeCanvasElement());\n stage.content.insertBefore(this.getNativeCanvasElement(), children[this.index + 1].getCanvas()._canvas);\n }\n }\n return true;\n }\n return false;\n }\n moveToBottom() {\n if (Node_1.Node.prototype.moveToBottom.call(this)) {\n var stage = this.getStage();\n if (stage) {\n var children = stage.children;\n if (stage.content) {\n stage.content.removeChild(this.getNativeCanvasElement());\n stage.content.insertBefore(this.getNativeCanvasElement(), children[1].getCanvas()._canvas);\n }\n }\n return true;\n }\n return false;\n }\n getLayer() {\n return this;\n }\n remove() {\n var _canvas = this.getNativeCanvasElement();\n Node_1.Node.prototype.remove.call(this);\n if (_canvas && _canvas.parentNode && Util_1.Util._isInDocument(_canvas)) {\n _canvas.parentNode.removeChild(_canvas);\n }\n return this;\n }\n getStage() {\n return this.parent;\n }\n setSize({ width, height }) {\n this.canvas.setSize(width, height);\n this.hitCanvas.setSize(width, height);\n this._setSmoothEnabled();\n return this;\n }\n _validateAdd(child) {\n var type = child.getType();\n if (type !== 'Group' && type !== 'Shape') {\n Util_1.Util.throw('You may only add groups and shapes to a layer.');\n }\n }\n _toKonvaCanvas(config) {\n config = config || {};\n config.width = config.width || this.getWidth();\n config.height = config.height || this.getHeight();\n config.x = config.x !== undefined ? config.x : this.x();\n config.y = config.y !== undefined ? config.y : this.y();\n return Node_1.Node.prototype._toKonvaCanvas.call(this, config);\n }\n _checkVisibility() {\n const visible = this.visible();\n if (visible) {\n this.canvas._canvas.style.display = 'block';\n }\n else {\n this.canvas._canvas.style.display = 'none';\n }\n }\n _setSmoothEnabled() {\n this.getContext()._context.imageSmoothingEnabled =\n this.imageSmoothingEnabled();\n }\n getWidth() {\n if (this.parent) {\n return this.parent.width();\n }\n }\n setWidth() {\n Util_1.Util.warn('Can not change width of layer. Use \"stage.width(value)\" function instead.');\n }\n getHeight() {\n if (this.parent) {\n return this.parent.height();\n }\n }\n setHeight() {\n Util_1.Util.warn('Can not change height of layer. Use \"stage.height(value)\" function instead.');\n }\n batchDraw() {\n if (!this._waitingForDraw) {\n this._waitingForDraw = true;\n Util_1.Util.requestAnimFrame(() => {\n this.draw();\n this._waitingForDraw = false;\n });\n }\n return this;\n }\n getIntersection(pos) {\n if (!this.isListening() || !this.isVisible()) {\n return null;\n }\n var spiralSearchDistance = 1;\n var continueSearch = false;\n while (true) {\n for (let i = 0; i < INTERSECTION_OFFSETS_LEN; i++) {\n const intersectionOffset = INTERSECTION_OFFSETS[i];\n const obj = this._getIntersection({\n x: pos.x + intersectionOffset.x * spiralSearchDistance,\n y: pos.y + intersectionOffset.y * spiralSearchDistance,\n });\n const shape = obj.shape;\n if (shape) {\n return shape;\n }\n continueSearch = !!obj.antialiased;\n if (!obj.antialiased) {\n break;\n }\n }\n if (continueSearch) {\n spiralSearchDistance += 1;\n }\n else {\n return null;\n }\n }\n }\n _getIntersection(pos) {\n const ratio = this.hitCanvas.pixelRatio;\n const p = this.hitCanvas.context.getImageData(Math.round(pos.x * ratio), Math.round(pos.y * ratio), 1, 1).data;\n const p3 = p[3];\n if (p3 === 255) {\n const colorKey = Util_1.Util._rgbToHex(p[0], p[1], p[2]);\n const shape = Shape_1.shapes[HASH + colorKey];\n if (shape) {\n return {\n shape: shape,\n };\n }\n return {\n antialiased: true,\n };\n }\n else if (p3 > 0) {\n return {\n antialiased: true,\n };\n }\n return {};\n }\n drawScene(can, top) {\n var layer = this.getLayer(), canvas = can || (layer && layer.getCanvas());\n this._fire(BEFORE_DRAW, {\n node: this,\n });\n if (this.clearBeforeDraw()) {\n canvas.getContext().clear();\n }\n Container_1.Container.prototype.drawScene.call(this, canvas, top);\n this._fire(DRAW, {\n node: this,\n });\n return this;\n }\n drawHit(can, top) {\n var layer = this.getLayer(), canvas = can || (layer && layer.hitCanvas);\n if (layer && layer.clearBeforeDraw()) {\n layer.getHitCanvas().getContext().clear();\n }\n Container_1.Container.prototype.drawHit.call(this, canvas, top);\n return this;\n }\n enableHitGraph() {\n this.hitGraphEnabled(true);\n return this;\n }\n disableHitGraph() {\n this.hitGraphEnabled(false);\n return this;\n }\n setHitGraphEnabled(val) {\n Util_1.Util.warn('hitGraphEnabled method is deprecated. Please use layer.listening() instead.');\n this.listening(val);\n }\n getHitGraphEnabled(val) {\n Util_1.Util.warn('hitGraphEnabled method is deprecated. Please use layer.listening() instead.');\n return this.listening();\n }\n toggleHitCanvas() {\n if (!this.parent || !this.parent['content']) {\n return;\n }\n var parent = this.parent;\n var added = !!this.hitCanvas._canvas.parentNode;\n if (added) {\n parent.content.removeChild(this.hitCanvas._canvas);\n }\n else {\n parent.content.appendChild(this.hitCanvas._canvas);\n }\n }\n destroy() {\n Util_1.Util.releaseCanvas(this.getNativeCanvasElement(), this.getHitCanvas()._canvas);\n return super.destroy();\n }\n}\nexports.Layer = Layer;\nLayer.prototype.nodeType = 'Layer';\n(0, Global_1._registerNode)(Layer);\nFactory_1.Factory.addGetterSetter(Layer, 'imageSmoothingEnabled', true);\nFactory_1.Factory.addGetterSetter(Layer, 'clearBeforeDraw', true);\nFactory_1.Factory.addGetterSetter(Layer, 'hitGraphEnabled', true, (0, Validators_1.getBooleanValidator)());\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Node = void 0;\nconst Util_1 = require(\"./Util\");\nconst Factory_1 = require(\"./Factory\");\nconst Canvas_1 = require(\"./Canvas\");\nconst Global_1 = require(\"./Global\");\nconst DragAndDrop_1 = require(\"./DragAndDrop\");\nconst Validators_1 = require(\"./Validators\");\nvar ABSOLUTE_OPACITY = 'absoluteOpacity', ALL_LISTENERS = 'allEventListeners', ABSOLUTE_TRANSFORM = 'absoluteTransform', ABSOLUTE_SCALE = 'absoluteScale', CANVAS = 'canvas', CHANGE = 'Change', CHILDREN = 'children', KONVA = 'konva', LISTENING = 'listening', MOUSEENTER = 'mouseenter', MOUSELEAVE = 'mouseleave', NAME = 'name', SET = 'set', SHAPE = 'Shape', SPACE = ' ', STAGE = 'stage', TRANSFORM = 'transform', UPPER_STAGE = 'Stage', VISIBLE = 'visible', TRANSFORM_CHANGE_STR = [\n 'xChange.konva',\n 'yChange.konva',\n 'scaleXChange.konva',\n 'scaleYChange.konva',\n 'skewXChange.konva',\n 'skewYChange.konva',\n 'rotationChange.konva',\n 'offsetXChange.konva',\n 'offsetYChange.konva',\n 'transformsEnabledChange.konva',\n].join(SPACE);\nlet idCounter = 1;\nclass Node {\n constructor(config) {\n this._id = idCounter++;\n this.eventListeners = {};\n this.attrs = {};\n this.index = 0;\n this._allEventListeners = null;\n this.parent = null;\n this._cache = new Map();\n this._attachedDepsListeners = new Map();\n this._lastPos = null;\n this._batchingTransformChange = false;\n this._needClearTransformCache = false;\n this._filterUpToDate = false;\n this._isUnderCache = false;\n this._dragEventId = null;\n this._shouldFireChangeEvents = false;\n this.setAttrs(config);\n this._shouldFireChangeEvents = true;\n }\n hasChildren() {\n return false;\n }\n _clearCache(attr) {\n if ((attr === TRANSFORM || attr === ABSOLUTE_TRANSFORM) &&\n this._cache.get(attr)) {\n this._cache.get(attr).dirty = true;\n }\n else if (attr) {\n this._cache.delete(attr);\n }\n else {\n this._cache.clear();\n }\n }\n _getCache(attr, privateGetter) {\n var cache = this._cache.get(attr);\n var isTransform = attr === TRANSFORM || attr === ABSOLUTE_TRANSFORM;\n var invalid = cache === undefined || (isTransform && cache.dirty === true);\n if (invalid) {\n cache = privateGetter.call(this);\n this._cache.set(attr, cache);\n }\n return cache;\n }\n _calculate(name, deps, getter) {\n if (!this._attachedDepsListeners.get(name)) {\n const depsString = deps.map((dep) => dep + 'Change.konva').join(SPACE);\n this.on(depsString, () => {\n this._clearCache(name);\n });\n this._attachedDepsListeners.set(name, true);\n }\n return this._getCache(name, getter);\n }\n _getCanvasCache() {\n return this._cache.get(CANVAS);\n }\n _clearSelfAndDescendantCache(attr) {\n this._clearCache(attr);\n if (attr === ABSOLUTE_TRANSFORM) {\n this.fire('absoluteTransformChange');\n }\n }\n clearCache() {\n if (this._cache.has(CANVAS)) {\n const { scene, filter, hit } = this._cache.get(CANVAS);\n Util_1.Util.releaseCanvas(scene, filter, hit);\n this._cache.delete(CANVAS);\n }\n this._clearSelfAndDescendantCache();\n this._requestDraw();\n return this;\n }\n cache(config) {\n var conf = config || {};\n var rect = {};\n if (conf.x === undefined ||\n conf.y === undefined ||\n conf.width === undefined ||\n conf.height === undefined) {\n rect = this.getClientRect({\n skipTransform: true,\n relativeTo: this.getParent() || undefined,\n });\n }\n var width = Math.ceil(conf.width || rect.width), height = Math.ceil(conf.height || rect.height), pixelRatio = conf.pixelRatio, x = conf.x === undefined ? Math.floor(rect.x) : conf.x, y = conf.y === undefined ? Math.floor(rect.y) : conf.y, offset = conf.offset || 0, drawBorder = conf.drawBorder || false, hitCanvasPixelRatio = conf.hitCanvasPixelRatio || 1;\n if (!width || !height) {\n Util_1.Util.error('Can not cache the node. Width or height of the node equals 0. Caching is skipped.');\n return;\n }\n const extraPaddingX = Math.abs(Math.round(rect.x) - x) > 0.5 ? 1 : 0;\n const extraPaddingY = Math.abs(Math.round(rect.y) - y) > 0.5 ? 1 : 0;\n width += offset * 2 + extraPaddingX;\n height += offset * 2 + extraPaddingY;\n x -= offset;\n y -= offset;\n var cachedSceneCanvas = new Canvas_1.SceneCanvas({\n pixelRatio: pixelRatio,\n width: width,\n height: height,\n }), cachedFilterCanvas = new Canvas_1.SceneCanvas({\n pixelRatio: pixelRatio,\n width: 0,\n height: 0,\n willReadFrequently: true,\n }), cachedHitCanvas = new Canvas_1.HitCanvas({\n pixelRatio: hitCanvasPixelRatio,\n width: width,\n height: height,\n }), sceneContext = cachedSceneCanvas.getContext(), hitContext = cachedHitCanvas.getContext();\n cachedHitCanvas.isCache = true;\n cachedSceneCanvas.isCache = true;\n this._cache.delete(CANVAS);\n this._filterUpToDate = false;\n if (conf.imageSmoothingEnabled === false) {\n cachedSceneCanvas.getContext()._context.imageSmoothingEnabled = false;\n cachedFilterCanvas.getContext()._context.imageSmoothingEnabled = false;\n }\n sceneContext.save();\n hitContext.save();\n sceneContext.translate(-x, -y);\n hitContext.translate(-x, -y);\n this._isUnderCache = true;\n this._clearSelfAndDescendantCache(ABSOLUTE_OPACITY);\n this._clearSelfAndDescendantCache(ABSOLUTE_SCALE);\n this.drawScene(cachedSceneCanvas, this);\n this.drawHit(cachedHitCanvas, this);\n this._isUnderCache = false;\n sceneContext.restore();\n hitContext.restore();\n if (drawBorder) {\n sceneContext.save();\n sceneContext.beginPath();\n sceneContext.rect(0, 0, width, height);\n sceneContext.closePath();\n sceneContext.setAttr('strokeStyle', 'red');\n sceneContext.setAttr('lineWidth', 5);\n sceneContext.stroke();\n sceneContext.restore();\n }\n this._cache.set(CANVAS, {\n scene: cachedSceneCanvas,\n filter: cachedFilterCanvas,\n hit: cachedHitCanvas,\n x: x,\n y: y,\n });\n this._requestDraw();\n return this;\n }\n isCached() {\n return this._cache.has(CANVAS);\n }\n getClientRect(config) {\n throw new Error('abstract \"getClientRect\" method call');\n }\n _transformedRect(rect, top) {\n var points = [\n { x: rect.x, y: rect.y },\n { x: rect.x + rect.width, y: rect.y },\n { x: rect.x + rect.width, y: rect.y + rect.height },\n { x: rect.x, y: rect.y + rect.height },\n ];\n var minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;\n var trans = this.getAbsoluteTransform(top);\n points.forEach(function (point) {\n var transformed = trans.point(point);\n if (minX === undefined) {\n minX = maxX = transformed.x;\n minY = maxY = transformed.y;\n }\n minX = Math.min(minX, transformed.x);\n minY = Math.min(minY, transformed.y);\n maxX = Math.max(maxX, transformed.x);\n maxY = Math.max(maxY, transformed.y);\n });\n return {\n x: minX,\n y: minY,\n width: maxX - minX,\n height: maxY - minY,\n };\n }\n _drawCachedSceneCanvas(context) {\n context.save();\n context._applyOpacity(this);\n context._applyGlobalCompositeOperation(this);\n const canvasCache = this._getCanvasCache();\n context.translate(canvasCache.x, canvasCache.y);\n var cacheCanvas = this._getCachedSceneCanvas();\n var ratio = cacheCanvas.pixelRatio;\n context.drawImage(cacheCanvas._canvas, 0, 0, cacheCanvas.width / ratio, cacheCanvas.height / ratio);\n context.restore();\n }\n _drawCachedHitCanvas(context) {\n var canvasCache = this._getCanvasCache(), hitCanvas = canvasCache.hit;\n context.save();\n context.translate(canvasCache.x, canvasCache.y);\n context.drawImage(hitCanvas._canvas, 0, 0, hitCanvas.width / hitCanvas.pixelRatio, hitCanvas.height / hitCanvas.pixelRatio);\n context.restore();\n }\n _getCachedSceneCanvas() {\n var filters = this.filters(), cachedCanvas = this._getCanvasCache(), sceneCanvas = cachedCanvas.scene, filterCanvas = cachedCanvas.filter, filterContext = filterCanvas.getContext(), len, imageData, n, filter;\n if (filters) {\n if (!this._filterUpToDate) {\n var ratio = sceneCanvas.pixelRatio;\n filterCanvas.setSize(sceneCanvas.width / sceneCanvas.pixelRatio, sceneCanvas.height / sceneCanvas.pixelRatio);\n try {\n len = filters.length;\n filterContext.clear();\n filterContext.drawImage(sceneCanvas._canvas, 0, 0, sceneCanvas.getWidth() / ratio, sceneCanvas.getHeight() / ratio);\n imageData = filterContext.getImageData(0, 0, filterCanvas.getWidth(), filterCanvas.getHeight());\n for (n = 0; n < len; n++) {\n filter = filters[n];\n if (typeof filter !== 'function') {\n Util_1.Util.error('Filter should be type of function, but got ' +\n typeof filter +\n ' instead. Please check correct filters');\n continue;\n }\n filter.call(this, imageData);\n filterContext.putImageData(imageData, 0, 0);\n }\n }\n catch (e) {\n Util_1.Util.error('Unable to apply filter. ' +\n e.message +\n ' This post my help you https://konvajs.org/docs/posts/Tainted_Canvas.html.');\n }\n this._filterUpToDate = true;\n }\n return filterCanvas;\n }\n return sceneCanvas;\n }\n on(evtStr, handler) {\n this._cache && this._cache.delete(ALL_LISTENERS);\n if (arguments.length === 3) {\n return this._delegate.apply(this, arguments);\n }\n var events = evtStr.split(SPACE), len = events.length, n, event, parts, baseEvent, name;\n for (n = 0; n < len; n++) {\n event = events[n];\n parts = event.split('.');\n baseEvent = parts[0];\n name = parts[1] || '';\n if (!this.eventListeners[baseEvent]) {\n this.eventListeners[baseEvent] = [];\n }\n this.eventListeners[baseEvent].push({\n name: name,\n handler: handler,\n });\n }\n return this;\n }\n off(evtStr, callback) {\n var events = (evtStr || '').split(SPACE), len = events.length, n, t, event, parts, baseEvent, name;\n this._cache && this._cache.delete(ALL_LISTENERS);\n if (!evtStr) {\n for (t in this.eventListeners) {\n this._off(t);\n }\n }\n for (n = 0; n < len; n++) {\n event = events[n];\n parts = event.split('.');\n baseEvent = parts[0];\n name = parts[1];\n if (baseEvent) {\n if (this.eventListeners[baseEvent]) {\n this._off(baseEvent, name, callback);\n }\n }\n else {\n for (t in this.eventListeners) {\n this._off(t, name, callback);\n }\n }\n }\n return this;\n }\n dispatchEvent(evt) {\n var e = {\n target: this,\n type: evt.type,\n evt: evt,\n };\n this.fire(evt.type, e);\n return this;\n }\n addEventListener(type, handler) {\n this.on(type, function (evt) {\n handler.call(this, evt.evt);\n });\n return this;\n }\n removeEventListener(type) {\n this.off(type);\n return this;\n }\n _delegate(event, selector, handler) {\n var stopNode = this;\n this.on(event, function (evt) {\n var targets = evt.target.findAncestors(selector, true, stopNode);\n for (var i = 0; i < targets.length; i++) {\n evt = Util_1.Util.cloneObject(evt);\n evt.currentTarget = targets[i];\n handler.call(targets[i], evt);\n }\n });\n }\n remove() {\n if (this.isDragging()) {\n this.stopDrag();\n }\n DragAndDrop_1.DD._dragElements.delete(this._id);\n this._remove();\n return this;\n }\n _clearCaches() {\n this._clearSelfAndDescendantCache(ABSOLUTE_TRANSFORM);\n this._clearSelfAndDescendantCache(ABSOLUTE_OPACITY);\n this._clearSelfAndDescendantCache(ABSOLUTE_SCALE);\n this._clearSelfAndDescendantCache(STAGE);\n this._clearSelfAndDescendantCache(VISIBLE);\n this._clearSelfAndDescendantCache(LISTENING);\n }\n _remove() {\n this._clearCaches();\n var parent = this.getParent();\n if (parent && parent.children) {\n parent.children.splice(this.index, 1);\n parent._setChildrenIndices();\n this.parent = null;\n }\n }\n destroy() {\n this.remove();\n this.clearCache();\n return this;\n }\n getAttr(attr) {\n var method = 'get' + Util_1.Util._capitalize(attr);\n if (Util_1.Util._isFunction(this[method])) {\n return this[method]();\n }\n return this.attrs[attr];\n }\n getAncestors() {\n var parent = this.getParent(), ancestors = [];\n while (parent) {\n ancestors.push(parent);\n parent = parent.getParent();\n }\n return ancestors;\n }\n getAttrs() {\n return (this.attrs || {});\n }\n setAttrs(config) {\n this._batchTransformChanges(() => {\n var key, method;\n if (!config) {\n return this;\n }\n for (key in config) {\n if (key === CHILDREN) {\n continue;\n }\n method = SET + Util_1.Util._capitalize(key);\n if (Util_1.Util._isFunction(this[method])) {\n this[method](config[key]);\n }\n else {\n this._setAttr(key, config[key]);\n }\n }\n });\n return this;\n }\n isListening() {\n return this._getCache(LISTENING, this._isListening);\n }\n _isListening(relativeTo) {\n const listening = this.listening();\n if (!listening) {\n return false;\n }\n const parent = this.getParent();\n if (parent && parent !== relativeTo && this !== relativeTo) {\n return parent._isListening(relativeTo);\n }\n else {\n return true;\n }\n }\n isVisible() {\n return this._getCache(VISIBLE, this._isVisible);\n }\n _isVisible(relativeTo) {\n const visible = this.visible();\n if (!visible) {\n return false;\n }\n const parent = this.getParent();\n if (parent && parent !== relativeTo && this !== relativeTo) {\n return parent._isVisible(relativeTo);\n }\n else {\n return true;\n }\n }\n shouldDrawHit(top, skipDragCheck = false) {\n if (top) {\n return this._isVisible(top) && this._isListening(top);\n }\n var layer = this.getLayer();\n var layerUnderDrag = false;\n DragAndDrop_1.DD._dragElements.forEach((elem) => {\n if (elem.dragStatus !== 'dragging') {\n return;\n }\n else if (elem.node.nodeType === 'Stage') {\n layerUnderDrag = true;\n }\n else if (elem.node.getLayer() === layer) {\n layerUnderDrag = true;\n }\n });\n var dragSkip = !skipDragCheck &&\n !Global_1.Konva.hitOnDragEnabled &&\n (layerUnderDrag || Global_1.Konva.isTransforming());\n return this.isListening() && this.isVisible() && !dragSkip;\n }\n show() {\n this.visible(true);\n return this;\n }\n hide() {\n this.visible(false);\n return this;\n }\n getZIndex() {\n return this.index || 0;\n }\n getAbsoluteZIndex() {\n var depth = this.getDepth(), that = this, index = 0, nodes, len, n, child;\n function addChildren(children) {\n nodes = [];\n len = children.length;\n for (n = 0; n < len; n++) {\n child = children[n];\n index++;\n if (child.nodeType !== SHAPE) {\n nodes = nodes.concat(child.getChildren().slice());\n }\n if (child._id === that._id) {\n n = len;\n }\n }\n if (nodes.length > 0 && nodes[0].getDepth() <= depth) {\n addChildren(nodes);\n }\n }\n const stage = this.getStage();\n if (that.nodeType !== UPPER_STAGE && stage) {\n addChildren(stage.getChildren());\n }\n return index;\n }\n getDepth() {\n var depth = 0, parent = this.parent;\n while (parent) {\n depth++;\n parent = parent.parent;\n }\n return depth;\n }\n _batchTransformChanges(func) {\n this._batchingTransformChange = true;\n func();\n this._batchingTransformChange = false;\n if (this._needClearTransformCache) {\n this._clearCache(TRANSFORM);\n this._clearSelfAndDescendantCache(ABSOLUTE_TRANSFORM);\n }\n this._needClearTransformCache = false;\n }\n setPosition(pos) {\n this._batchTransformChanges(() => {\n this.x(pos.x);\n this.y(pos.y);\n });\n return this;\n }\n getPosition() {\n return {\n x: this.x(),\n y: this.y(),\n };\n }\n getRelativePointerPosition() {\n const stage = this.getStage();\n if (!stage) {\n return null;\n }\n var pos = stage.getPointerPosition();\n if (!pos) {\n return null;\n }\n var transform = this.getAbsoluteTransform().copy();\n transform.invert();\n return transform.point(pos);\n }\n getAbsolutePosition(top) {\n let haveCachedParent = false;\n let parent = this.parent;\n while (parent) {\n if (parent.isCached()) {\n haveCachedParent = true;\n break;\n }\n parent = parent.parent;\n }\n if (haveCachedParent && !top) {\n top = true;\n }\n var absoluteMatrix = this.getAbsoluteTransform(top).getMatrix(), absoluteTransform = new Util_1.Transform(), offset = this.offset();\n absoluteTransform.m = absoluteMatrix.slice();\n absoluteTransform.translate(offset.x, offset.y);\n return absoluteTransform.getTranslation();\n }\n setAbsolutePosition(pos) {\n const { x, y, ...origTrans } = this._clearTransform();\n this.attrs.x = x;\n this.attrs.y = y;\n this._clearCache(TRANSFORM);\n var it = this._getAbsoluteTransform().copy();\n it.invert();\n it.translate(pos.x, pos.y);\n pos = {\n x: this.attrs.x + it.getTranslation().x,\n y: this.attrs.y + it.getTranslation().y,\n };\n this._setTransform(origTrans);\n this.setPosition({ x: pos.x, y: pos.y });\n this._clearCache(TRANSFORM);\n this._clearSelfAndDescendantCache(ABSOLUTE_TRANSFORM);\n return this;\n }\n _setTransform(trans) {\n var key;\n for (key in trans) {\n this.attrs[key] = trans[key];\n }\n }\n _clearTransform() {\n var trans = {\n x: this.x(),\n y: this.y(),\n rotation: this.rotation(),\n scaleX: this.scaleX(),\n scaleY: this.scaleY(),\n offsetX: this.offsetX(),\n offsetY: this.offsetY(),\n skewX: this.skewX(),\n skewY: this.skewY(),\n };\n this.attrs.x = 0;\n this.attrs.y = 0;\n this.attrs.rotation = 0;\n this.attrs.scaleX = 1;\n this.attrs.scaleY = 1;\n this.attrs.offsetX = 0;\n this.attrs.offsetY = 0;\n this.attrs.skewX = 0;\n this.attrs.skewY = 0;\n return trans;\n }\n move(change) {\n var changeX = change.x, changeY = change.y, x = this.x(), y = this.y();\n if (changeX !== undefined) {\n x += changeX;\n }\n if (changeY !== undefined) {\n y += changeY;\n }\n this.setPosition({ x: x, y: y });\n return this;\n }\n _eachAncestorReverse(func, top) {\n var family = [], parent = this.getParent(), len, n;\n if (top && top._id === this._id) {\n return;\n }\n family.unshift(this);\n while (parent && (!top || parent._id !== top._id)) {\n family.unshift(parent);\n parent = parent.parent;\n }\n len = family.length;\n for (n = 0; n < len; n++) {\n func(family[n]);\n }\n }\n rotate(theta) {\n this.rotation(this.rotation() + theta);\n return this;\n }\n moveToTop() {\n if (!this.parent) {\n Util_1.Util.warn('Node has no parent. moveToTop function is ignored.');\n return false;\n }\n var index = this.index, len = this.parent.getChildren().length;\n if (index < len - 1) {\n this.parent.children.splice(index, 1);\n this.parent.children.push(this);\n this.parent._setChildrenIndices();\n return true;\n }\n return false;\n }\n moveUp() {\n if (!this.parent) {\n Util_1.Util.warn('Node has no parent. moveUp function is ignored.');\n return false;\n }\n var index = this.index, len = this.parent.getChildren().length;\n if (index < len - 1) {\n this.parent.children.splice(index, 1);\n this.parent.children.splice(index + 1, 0, this);\n this.parent._setChildrenIndices();\n return true;\n }\n return false;\n }\n moveDown() {\n if (!this.parent) {\n Util_1.Util.warn('Node has no parent. moveDown function is ignored.');\n return false;\n }\n var index = this.index;\n if (index > 0) {\n this.parent.children.splice(index, 1);\n this.parent.children.splice(index - 1, 0, this);\n this.parent._setChildrenIndices();\n return true;\n }\n return false;\n }\n moveToBottom() {\n if (!this.parent) {\n Util_1.Util.warn('Node has no parent. moveToBottom function is ignored.');\n return false;\n }\n var index = this.index;\n if (index > 0) {\n this.parent.children.splice(index, 1);\n this.parent.children.unshift(this);\n this.parent._setChildrenIndices();\n return true;\n }\n return false;\n }\n setZIndex(zIndex) {\n if (!this.parent) {\n Util_1.Util.warn('Node has no parent. zIndex parameter is ignored.');\n return this;\n }\n if (zIndex < 0 || zIndex >= this.parent.children.length) {\n Util_1.Util.warn('Unexpected value ' +\n zIndex +\n ' for zIndex property. zIndex is just index of a node in children of its parent. Expected value is from 0 to ' +\n (this.parent.children.length - 1) +\n '.');\n }\n var index = this.index;\n this.parent.children.splice(index, 1);\n this.parent.children.splice(zIndex, 0, this);\n this.parent._setChildrenIndices();\n return this;\n }\n getAbsoluteOpacity() {\n return this._getCache(ABSOLUTE_OPACITY, this._getAbsoluteOpacity);\n }\n _getAbsoluteOpacity() {\n var absOpacity = this.opacity();\n var parent = this.getParent();\n if (parent && !parent._isUnderCache) {\n absOpacity *= parent.getAbsoluteOpacity();\n }\n return absOpacity;\n }\n moveTo(newContainer) {\n if (this.getParent() !== newContainer) {\n this._remove();\n newContainer.add(this);\n }\n return this;\n }\n toObject() {\n var attrs = this.getAttrs(), key, val, getter, defaultValue, nonPlainObject;\n const obj = {\n attrs: {},\n className: this.getClassName(),\n };\n for (key in attrs) {\n val = attrs[key];\n nonPlainObject =\n Util_1.Util.isObject(val) && !Util_1.Util._isPlainObject(val) && !Util_1.Util._isArray(val);\n if (nonPlainObject) {\n continue;\n }\n getter = typeof this[key] === 'function' && this[key];\n delete attrs[key];\n defaultValue = getter ? getter.call(this) : null;\n attrs[key] = val;\n if (defaultValue !== val) {\n obj.attrs[key] = val;\n }\n }\n return Util_1.Util._prepareToStringify(obj);\n }\n toJSON() {\n return JSON.stringify(this.toObject());\n }\n getParent() {\n return this.parent;\n }\n findAncestors(selector, includeSelf, stopNode) {\n var res = [];\n if (includeSelf && this._isMatch(selector)) {\n res.push(this);\n }\n var ancestor = this.parent;\n while (ancestor) {\n if (ancestor === stopNode) {\n return res;\n }\n if (ancestor._isMatch(selector)) {\n res.push(ancestor);\n }\n ancestor = ancestor.parent;\n }\n return res;\n }\n isAncestorOf(node) {\n return false;\n }\n findAncestor(selector, includeSelf, stopNode) {\n return this.findAncestors(selector, includeSelf, stopNode)[0];\n }\n _isMatch(selector) {\n if (!selector) {\n return false;\n }\n if (typeof selector === 'function') {\n return selector(this);\n }\n var selectorArr = selector.replace(/ /g, '').split(','), len = selectorArr.length, n, sel;\n for (n = 0; n < len; n++) {\n sel = selectorArr[n];\n if (!Util_1.Util.isValidSelector(sel)) {\n Util_1.Util.warn('Selector \"' +\n sel +\n '\" is invalid. Allowed selectors examples are \"#foo\", \".bar\" or \"Group\".');\n Util_1.Util.warn('If you have a custom shape with such className, please change it to start with upper letter like \"Triangle\".');\n Util_1.Util.warn('Konva is awesome, right?');\n }\n if (sel.charAt(0) === '#') {\n if (this.id() === sel.slice(1)) {\n return true;\n }\n }\n else if (sel.charAt(0) === '.') {\n if (this.hasName(sel.slice(1))) {\n return true;\n }\n }\n else if (this.className === sel || this.nodeType === sel) {\n return true;\n }\n }\n return false;\n }\n getLayer() {\n var parent = this.getParent();\n return parent ? parent.getLayer() : null;\n }\n getStage() {\n return this._getCache(STAGE, this._getStage);\n }\n _getStage() {\n var parent = this.getParent();\n if (parent) {\n return parent.getStage();\n }\n else {\n return null;\n }\n }\n fire(eventType, evt = {}, bubble) {\n evt.target = evt.target || this;\n if (bubble) {\n this._fireAndBubble(eventType, evt);\n }\n else {\n this._fire(eventType, evt);\n }\n return this;\n }\n getAbsoluteTransform(top) {\n if (top) {\n return this._getAbsoluteTransform(top);\n }\n else {\n return this._getCache(ABSOLUTE_TRANSFORM, this._getAbsoluteTransform);\n }\n }\n _getAbsoluteTransform(top) {\n var at;\n if (top) {\n at = new Util_1.Transform();\n this._eachAncestorReverse(function (node) {\n var transformsEnabled = node.transformsEnabled();\n if (transformsEnabled === 'all') {\n at.multiply(node.getTransform());\n }\n else if (transformsEnabled === 'position') {\n at.translate(node.x() - node.offsetX(), node.y() - node.offsetY());\n }\n }, top);\n return at;\n }\n else {\n at = this._cache.get(ABSOLUTE_TRANSFORM) || new Util_1.Transform();\n if (this.parent) {\n this.parent.getAbsoluteTransform().copyInto(at);\n }\n else {\n at.reset();\n }\n var transformsEnabled = this.transformsEnabled();\n if (transformsEnabled === 'all') {\n at.multiply(this.getTransform());\n }\n else if (transformsEnabled === 'position') {\n const x = this.attrs.x || 0;\n const y = this.attrs.y || 0;\n const offsetX = this.attrs.offsetX || 0;\n const offsetY = this.attrs.offsetY || 0;\n at.translate(x - offsetX, y - offsetY);\n }\n at.dirty = false;\n return at;\n }\n }\n getAbsoluteScale(top) {\n var parent = this;\n while (parent) {\n if (parent._isUnderCache) {\n top = parent;\n }\n parent = parent.getParent();\n }\n const transform = this.getAbsoluteTransform(top);\n const attrs = transform.decompose();\n return {\n x: attrs.scaleX,\n y: attrs.scaleY,\n };\n }\n getAbsoluteRotation() {\n return this.getAbsoluteTransform().decompose().rotation;\n }\n getTransform() {\n return this._getCache(TRANSFORM, this._getTransform);\n }\n _getTransform() {\n var _a, _b;\n var m = this._cache.get(TRANSFORM) || new Util_1.Transform();\n m.reset();\n var x = this.x(), y = this.y(), rotation = Global_1.Konva.getAngle(this.rotation()), scaleX = (_a = this.attrs.scaleX) !== null && _a !== void 0 ? _a : 1, scaleY = (_b = this.attrs.scaleY) !== null && _b !== void 0 ? _b : 1, skewX = this.attrs.skewX || 0, skewY = this.attrs.skewY || 0, offsetX = this.attrs.offsetX || 0, offsetY = this.attrs.offsetY || 0;\n if (x !== 0 || y !== 0) {\n m.translate(x, y);\n }\n if (rotation !== 0) {\n m.rotate(rotation);\n }\n if (skewX !== 0 || skewY !== 0) {\n m.skew(skewX, skewY);\n }\n if (scaleX !== 1 || scaleY !== 1) {\n m.scale(scaleX, scaleY);\n }\n if (offsetX !== 0 || offsetY !== 0) {\n m.translate(-1 * offsetX, -1 * offsetY);\n }\n m.dirty = false;\n return m;\n }\n clone(obj) {\n var attrs = Util_1.Util.cloneObject(this.attrs), key, allListeners, len, n, listener;\n for (key in obj) {\n attrs[key] = obj[key];\n }\n var node = new this.constructor(attrs);\n for (key in this.eventListeners) {\n allListeners = this.eventListeners[key];\n len = allListeners.length;\n for (n = 0; n < len; n++) {\n listener = allListeners[n];\n if (listener.name.indexOf(KONVA) < 0) {\n if (!node.eventListeners[key]) {\n node.eventListeners[key] = [];\n }\n node.eventListeners[key].push(listener);\n }\n }\n }\n return node;\n }\n _toKonvaCanvas(config) {\n config = config || {};\n var box = this.getClientRect();\n var stage = this.getStage(), x = config.x !== undefined ? config.x : Math.floor(box.x), y = config.y !== undefined ? config.y : Math.floor(box.y), pixelRatio = config.pixelRatio || 1, canvas = new Canvas_1.SceneCanvas({\n width: config.width || Math.ceil(box.width) || (stage ? stage.width() : 0),\n height: config.height ||\n Math.ceil(box.height) ||\n (stage ? stage.height() : 0),\n pixelRatio: pixelRatio,\n }), context = canvas.getContext();\n const bufferCanvas = new Canvas_1.SceneCanvas({\n width: canvas.width / canvas.pixelRatio + Math.abs(x),\n height: canvas.height / canvas.pixelRatio + Math.abs(y),\n pixelRatio: canvas.pixelRatio,\n });\n if (config.imageSmoothingEnabled === false) {\n context._context.imageSmoothingEnabled = false;\n }\n context.save();\n if (x || y) {\n context.translate(-1 * x, -1 * y);\n }\n this.drawScene(canvas, undefined, bufferCanvas);\n context.restore();\n return canvas;\n }\n toCanvas(config) {\n return this._toKonvaCanvas(config)._canvas;\n }\n toDataURL(config) {\n config = config || {};\n var mimeType = config.mimeType || null, quality = config.quality || null;\n var url = this._toKonvaCanvas(config).toDataURL(mimeType, quality);\n if (config.callback) {\n config.callback(url);\n }\n return url;\n }\n toImage(config) {\n return new Promise((resolve, reject) => {\n try {\n const callback = config === null || config === void 0 ? void 0 : config.callback;\n if (callback)\n delete config.callback;\n Util_1.Util._urlToImage(this.toDataURL(config), function (img) {\n resolve(img);\n callback === null || callback === void 0 ? void 0 : callback(img);\n });\n }\n catch (err) {\n reject(err);\n }\n });\n }\n toBlob(config) {\n return new Promise((resolve, reject) => {\n try {\n const callback = config === null || config === void 0 ? void 0 : config.callback;\n if (callback)\n delete config.callback;\n this.toCanvas(config).toBlob((blob) => {\n resolve(blob);\n callback === null || callback === void 0 ? void 0 : callback(blob);\n }, config === null || config === void 0 ? void 0 : config.mimeType, config === null || config === void 0 ? void 0 : config.quality);\n }\n catch (err) {\n reject(err);\n }\n });\n }\n setSize(size) {\n this.width(size.width);\n this.height(size.height);\n return this;\n }\n getSize() {\n return {\n width: this.width(),\n height: this.height(),\n };\n }\n getClassName() {\n return this.className || this.nodeType;\n }\n getType() {\n return this.nodeType;\n }\n getDragDistance() {\n if (this.attrs.dragDistance !== undefined) {\n return this.attrs.dragDistance;\n }\n else if (this.parent) {\n return this.parent.getDragDistance();\n }\n else {\n return Global_1.Konva.dragDistance;\n }\n }\n _off(type, name, callback) {\n var evtListeners = this.eventListeners[type], i, evtName, handler;\n for (i = 0; i < evtListeners.length; i++) {\n evtName = evtListeners[i].name;\n handler = evtListeners[i].handler;\n if ((evtName !== 'konva' || name === 'konva') &&\n (!name || evtName === name) &&\n (!callback || callback === handler)) {\n evtListeners.splice(i, 1);\n if (evtListeners.length === 0) {\n delete this.eventListeners[type];\n break;\n }\n i--;\n }\n }\n }\n _fireChangeEvent(attr, oldVal, newVal) {\n this._fire(attr + CHANGE, {\n oldVal: oldVal,\n newVal: newVal,\n });\n }\n addName(name) {\n if (!this.hasName(name)) {\n var oldName = this.name();\n var newName = oldName ? oldName + ' ' + name : name;\n this.name(newName);\n }\n return this;\n }\n hasName(name) {\n if (!name) {\n return false;\n }\n const fullName = this.name();\n if (!fullName) {\n return false;\n }\n var names = (fullName || '').split(/\\s/g);\n return names.indexOf(name) !== -1;\n }\n removeName(name) {\n var names = (this.name() || '').split(/\\s/g);\n var index = names.indexOf(name);\n if (index !== -1) {\n names.splice(index, 1);\n this.name(names.join(' '));\n }\n return this;\n }\n setAttr(attr, val) {\n var func = this[SET + Util_1.Util._capitalize(attr)];\n if (Util_1.Util._isFunction(func)) {\n func.call(this, val);\n }\n else {\n this._setAttr(attr, val);\n }\n return this;\n }\n _requestDraw() {\n if (Global_1.Konva.autoDrawEnabled) {\n const drawNode = this.getLayer() || this.getStage();\n drawNode === null || drawNode === void 0 ? void 0 : drawNode.batchDraw();\n }\n }\n _setAttr(key, val) {\n var oldVal = this.attrs[key];\n if (oldVal === val && !Util_1.Util.isObject(val)) {\n return;\n }\n if (val === undefined || val === null) {\n delete this.attrs[key];\n }\n else {\n this.attrs[key] = val;\n }\n if (this._shouldFireChangeEvents) {\n this._fireChangeEvent(key, oldVal, val);\n }\n this._requestDraw();\n }\n _setComponentAttr(key, component, val) {\n var oldVal;\n if (val !== undefined) {\n oldVal = this.attrs[key];\n if (!oldVal) {\n this.attrs[key] = this.getAttr(key);\n }\n this.attrs[key][component] = val;\n this._fireChangeEvent(key, oldVal, val);\n }\n }\n _fireAndBubble(eventType, evt, compareShape) {\n if (evt && this.nodeType === SHAPE) {\n evt.target = this;\n }\n var shouldStop = (eventType === MOUSEENTER || eventType === MOUSELEAVE) &&\n ((compareShape &&\n (this === compareShape ||\n (this.isAncestorOf && this.isAncestorOf(compareShape)))) ||\n (this.nodeType === 'Stage' && !compareShape));\n if (!shouldStop) {\n this._fire(eventType, evt);\n var stopBubble = (eventType === MOUSEENTER || eventType === MOUSELEAVE) &&\n compareShape &&\n compareShape.isAncestorOf &&\n compareShape.isAncestorOf(this) &&\n !compareShape.isAncestorOf(this.parent);\n if (((evt && !evt.cancelBubble) || !evt) &&\n this.parent &&\n this.parent.isListening() &&\n !stopBubble) {\n if (compareShape && compareShape.parent) {\n this._fireAndBubble.call(this.parent, eventType, evt, compareShape);\n }\n else {\n this._fireAndBubble.call(this.parent, eventType, evt);\n }\n }\n }\n }\n _getProtoListeners(eventType) {\n var _a, _b, _c;\n const allListeners = (_a = this._cache.get(ALL_LISTENERS)) !== null && _a !== void 0 ? _a : {};\n let events = allListeners === null || allListeners === void 0 ? void 0 : allListeners[eventType];\n if (events === undefined) {\n events = [];\n let obj = Object.getPrototypeOf(this);\n while (obj) {\n const hierarchyEvents = (_c = (_b = obj.eventListeners) === null || _b === void 0 ? void 0 : _b[eventType]) !== null && _c !== void 0 ? _c : [];\n events.push(...hierarchyEvents);\n obj = Object.getPrototypeOf(obj);\n }\n allListeners[eventType] = events;\n this._cache.set(ALL_LISTENERS, allListeners);\n }\n return events;\n }\n _fire(eventType, evt) {\n evt = evt || {};\n evt.currentTarget = this;\n evt.type = eventType;\n const topListeners = this._getProtoListeners(eventType);\n if (topListeners) {\n for (var i = 0; i < topListeners.length; i++) {\n topListeners[i].handler.call(this, evt);\n }\n }\n const selfListeners = this.eventListeners[eventType];\n if (selfListeners) {\n for (var i = 0; i < selfListeners.length; i++) {\n selfListeners[i].handler.call(this, evt);\n }\n }\n }\n draw() {\n this.drawScene();\n this.drawHit();\n return this;\n }\n _createDragElement(evt) {\n var pointerId = evt ? evt.pointerId : undefined;\n var stage = this.getStage();\n var ap = this.getAbsolutePosition();\n if (!stage) {\n return;\n }\n var pos = stage._getPointerById(pointerId) ||\n stage._changedPointerPositions[0] ||\n ap;\n DragAndDrop_1.DD._dragElements.set(this._id, {\n node: this,\n startPointerPos: pos,\n offset: {\n x: pos.x - ap.x,\n y: pos.y - ap.y,\n },\n dragStatus: 'ready',\n pointerId,\n });\n }\n startDrag(evt, bubbleEvent = true) {\n if (!DragAndDrop_1.DD._dragElements.has(this._id)) {\n this._createDragElement(evt);\n }\n const elem = DragAndDrop_1.DD._dragElements.get(this._id);\n elem.dragStatus = 'dragging';\n this.fire('dragstart', {\n type: 'dragstart',\n target: this,\n evt: evt && evt.evt,\n }, bubbleEvent);\n }\n _setDragPosition(evt, elem) {\n const pos = this.getStage()._getPointerById(elem.pointerId);\n if (!pos) {\n return;\n }\n var newNodePos = {\n x: pos.x - elem.offset.x,\n y: pos.y - elem.offset.y,\n };\n var dbf = this.dragBoundFunc();\n if (dbf !== undefined) {\n const bounded = dbf.call(this, newNodePos, evt);\n if (!bounded) {\n Util_1.Util.warn('dragBoundFunc did not return any value. That is unexpected behavior. You must return new absolute position from dragBoundFunc.');\n }\n else {\n newNodePos = bounded;\n }\n }\n if (!this._lastPos ||\n this._lastPos.x !== newNodePos.x ||\n this._lastPos.y !== newNodePos.y) {\n this.setAbsolutePosition(newNodePos);\n this._requestDraw();\n }\n this._lastPos = newNodePos;\n }\n stopDrag(evt) {\n const elem = DragAndDrop_1.DD._dragElements.get(this._id);\n if (elem) {\n elem.dragStatus = 'stopped';\n }\n DragAndDrop_1.DD._endDragBefore(evt);\n DragAndDrop_1.DD._endDragAfter(evt);\n }\n setDraggable(draggable) {\n this._setAttr('draggable', draggable);\n this._dragChange();\n }\n isDragging() {\n const elem = DragAndDrop_1.DD._dragElements.get(this._id);\n return elem ? elem.dragStatus === 'dragging' : false;\n }\n _listenDrag() {\n this._dragCleanup();\n this.on('mousedown.konva touchstart.konva', function (evt) {\n var shouldCheckButton = evt.evt['button'] !== undefined;\n var canDrag = !shouldCheckButton || Global_1.Konva.dragButtons.indexOf(evt.evt['button']) >= 0;\n if (!canDrag) {\n return;\n }\n if (this.isDragging()) {\n return;\n }\n var hasDraggingChild = false;\n DragAndDrop_1.DD._dragElements.forEach((elem) => {\n if (this.isAncestorOf(elem.node)) {\n hasDraggingChild = true;\n }\n });\n if (!hasDraggingChild) {\n this._createDragElement(evt);\n }\n });\n }\n _dragChange() {\n if (this.attrs.draggable) {\n this._listenDrag();\n }\n else {\n this._dragCleanup();\n var stage = this.getStage();\n if (!stage) {\n return;\n }\n const dragElement = DragAndDrop_1.DD._dragElements.get(this._id);\n const isDragging = dragElement && dragElement.dragStatus === 'dragging';\n const isReady = dragElement && dragElement.dragStatus === 'ready';\n if (isDragging) {\n this.stopDrag();\n }\n else if (isReady) {\n DragAndDrop_1.DD._dragElements.delete(this._id);\n }\n }\n }\n _dragCleanup() {\n this.off('mousedown.konva');\n this.off('touchstart.konva');\n }\n isClientRectOnScreen(margin = { x: 0, y: 0 }) {\n const stage = this.getStage();\n if (!stage) {\n return false;\n }\n const screenRect = {\n x: -margin.x,\n y: -margin.y,\n width: stage.width() + 2 * margin.x,\n height: stage.height() + 2 * margin.y,\n };\n return Util_1.Util.haveIntersection(screenRect, this.getClientRect());\n }\n static create(data, container) {\n if (Util_1.Util._isString(data)) {\n data = JSON.parse(data);\n }\n return this._createNode(data, container);\n }\n static _createNode(obj, container) {\n var className = Node.prototype.getClassName.call(obj), children = obj.children, no, len, n;\n if (container) {\n obj.attrs.container = container;\n }\n if (!Global_1.Konva[className]) {\n Util_1.Util.warn('Can not find a node with class name \"' +\n className +\n '\". Fallback to \"Shape\".');\n className = 'Shape';\n }\n const Class = Global_1.Konva[className];\n no = new Class(obj.attrs);\n if (children) {\n len = children.length;\n for (n = 0; n < len; n++) {\n no.add(Node._createNode(children[n]));\n }\n }\n return no;\n }\n}\nexports.Node = Node;\nNode.prototype.nodeType = 'Node';\nNode.prototype._attrsAffectingSize = [];\nNode.prototype.eventListeners = {};\nNode.prototype.on.call(Node.prototype, TRANSFORM_CHANGE_STR, function () {\n if (this._batchingTransformChange) {\n this._needClearTransformCache = true;\n return;\n }\n this._clearCache(TRANSFORM);\n this._clearSelfAndDescendantCache(ABSOLUTE_TRANSFORM);\n});\nNode.prototype.on.call(Node.prototype, 'visibleChange.konva', function () {\n this._clearSelfAndDescendantCache(VISIBLE);\n});\nNode.prototype.on.call(Node.prototype, 'listeningChange.konva', function () {\n this._clearSelfAndDescendantCache(LISTENING);\n});\nNode.prototype.on.call(Node.prototype, 'opacityChange.konva', function () {\n this._clearSelfAndDescendantCache(ABSOLUTE_OPACITY);\n});\nconst addGetterSetter = Factory_1.Factory.addGetterSetter;\naddGetterSetter(Node, 'zIndex');\naddGetterSetter(Node, 'absolutePosition');\naddGetterSetter(Node, 'position');\naddGetterSetter(Node, 'x', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'y', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'globalCompositeOperation', 'source-over', (0, Validators_1.getStringValidator)());\naddGetterSetter(Node, 'opacity', 1, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'name', '', (0, Validators_1.getStringValidator)());\naddGetterSetter(Node, 'id', '', (0, Validators_1.getStringValidator)());\naddGetterSetter(Node, 'rotation', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Node, 'scale', ['x', 'y']);\naddGetterSetter(Node, 'scaleX', 1, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'scaleY', 1, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Node, 'skew', ['x', 'y']);\naddGetterSetter(Node, 'skewX', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'skewY', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Node, 'offset', ['x', 'y']);\naddGetterSetter(Node, 'offsetX', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'offsetY', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'dragDistance', null, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'width', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'height', 0, (0, Validators_1.getNumberValidator)());\naddGetterSetter(Node, 'listening', true, (0, Validators_1.getBooleanValidator)());\naddGetterSetter(Node, 'preventDefault', true, (0, Validators_1.getBooleanValidator)());\naddGetterSetter(Node, 'filters', null, function (val) {\n this._filterUpToDate = false;\n return val;\n});\naddGetterSetter(Node, 'visible', true, (0, Validators_1.getBooleanValidator)());\naddGetterSetter(Node, 'transformsEnabled', 'all', (0, Validators_1.getStringValidator)());\naddGetterSetter(Node, 'size');\naddGetterSetter(Node, 'dragBoundFunc');\naddGetterSetter(Node, 'draggable', false, (0, Validators_1.getBooleanValidator)());\nFactory_1.Factory.backCompat(Node, {\n rotateDeg: 'rotate',\n setRotationDeg: 'setRotation',\n getRotationDeg: 'getRotation',\n});\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.releaseCapture = exports.setPointerCapture = exports.hasPointerCapture = exports.createEvent = exports.getCapturedShape = void 0;\nconst Global_1 = require(\"./Global\");\nconst Captures = new Map();\nconst SUPPORT_POINTER_EVENTS = Global_1.Konva._global['PointerEvent'] !== undefined;\nfunction getCapturedShape(pointerId) {\n return Captures.get(pointerId);\n}\nexports.getCapturedShape = getCapturedShape;\nfunction createEvent(evt) {\n return {\n evt,\n pointerId: evt.pointerId,\n };\n}\nexports.createEvent = createEvent;\nfunction hasPointerCapture(pointerId, shape) {\n return Captures.get(pointerId) === shape;\n}\nexports.hasPointerCapture = hasPointerCapture;\nfunction setPointerCapture(pointerId, shape) {\n releaseCapture(pointerId);\n const stage = shape.getStage();\n if (!stage)\n return;\n Captures.set(pointerId, shape);\n if (SUPPORT_POINTER_EVENTS) {\n shape._fire('gotpointercapture', createEvent(new PointerEvent('gotpointercapture')));\n }\n}\nexports.setPointerCapture = setPointerCapture;\nfunction releaseCapture(pointerId, target) {\n const shape = Captures.get(pointerId);\n if (!shape)\n return;\n const stage = shape.getStage();\n if (stage && stage.content) {\n }\n Captures.delete(pointerId);\n if (SUPPORT_POINTER_EVENTS) {\n shape._fire('lostpointercapture', createEvent(new PointerEvent('lostpointercapture')));\n }\n}\nexports.releaseCapture = releaseCapture;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Shape = exports.shapes = void 0;\nconst Global_1 = require(\"./Global\");\nconst Util_1 = require(\"./Util\");\nconst Factory_1 = require(\"./Factory\");\nconst Node_1 = require(\"./Node\");\nconst Validators_1 = require(\"./Validators\");\nconst Global_2 = require(\"./Global\");\nconst PointerEvents = require(\"./PointerEvents\");\nvar HAS_SHADOW = 'hasShadow';\nvar SHADOW_RGBA = 'shadowRGBA';\nvar patternImage = 'patternImage';\nvar linearGradient = 'linearGradient';\nvar radialGradient = 'radialGradient';\nlet dummyContext;\nfunction getDummyContext() {\n if (dummyContext) {\n return dummyContext;\n }\n dummyContext = Util_1.Util.createCanvasElement().getContext('2d');\n return dummyContext;\n}\nexports.shapes = {};\nfunction _fillFunc(context) {\n const fillRule = this.attrs.fillRule;\n if (fillRule) {\n context.fill(fillRule);\n }\n else {\n context.fill();\n }\n}\nfunction _strokeFunc(context) {\n context.stroke();\n}\nfunction _fillFuncHit(context) {\n context.fill();\n}\nfunction _strokeFuncHit(context) {\n context.stroke();\n}\nfunction _clearHasShadowCache() {\n this._clearCache(HAS_SHADOW);\n}\nfunction _clearGetShadowRGBACache() {\n this._clearCache(SHADOW_RGBA);\n}\nfunction _clearFillPatternCache() {\n this._clearCache(patternImage);\n}\nfunction _clearLinearGradientCache() {\n this._clearCache(linearGradient);\n}\nfunction _clearRadialGradientCache() {\n this._clearCache(radialGradient);\n}\nclass Shape extends Node_1.Node {\n constructor(config) {\n super(config);\n let key;\n while (true) {\n key = Util_1.Util.getRandomColor();\n if (key && !(key in exports.shapes)) {\n break;\n }\n }\n this.colorKey = key;\n exports.shapes[key] = this;\n }\n getContext() {\n Util_1.Util.warn('shape.getContext() method is deprecated. Please do not use it.');\n return this.getLayer().getContext();\n }\n getCanvas() {\n Util_1.Util.warn('shape.getCanvas() method is deprecated. Please do not use it.');\n return this.getLayer().getCanvas();\n }\n getSceneFunc() {\n return this.attrs.sceneFunc || this['_sceneFunc'];\n }\n getHitFunc() {\n return this.attrs.hitFunc || this['_hitFunc'];\n }\n hasShadow() {\n return this._getCache(HAS_SHADOW, this._hasShadow);\n }\n _hasShadow() {\n return (this.shadowEnabled() &&\n this.shadowOpacity() !== 0 &&\n !!(this.shadowColor() ||\n this.shadowBlur() ||\n this.shadowOffsetX() ||\n this.shadowOffsetY()));\n }\n _getFillPattern() {\n return this._getCache(patternImage, this.__getFillPattern);\n }\n __getFillPattern() {\n if (this.fillPatternImage()) {\n var ctx = getDummyContext();\n const pattern = ctx.createPattern(this.fillPatternImage(), this.fillPatternRepeat() || 'repeat');\n if (pattern && pattern.setTransform) {\n const tr = new Util_1.Transform();\n tr.translate(this.fillPatternX(), this.fillPatternY());\n tr.rotate(Global_1.Konva.getAngle(this.fillPatternRotation()));\n tr.scale(this.fillPatternScaleX(), this.fillPatternScaleY());\n tr.translate(-1 * this.fillPatternOffsetX(), -1 * this.fillPatternOffsetY());\n const m = tr.getMatrix();\n const matrix = typeof DOMMatrix === 'undefined'\n ? {\n a: m[0],\n b: m[1],\n c: m[2],\n d: m[3],\n e: m[4],\n f: m[5],\n }\n : new DOMMatrix(m);\n pattern.setTransform(matrix);\n }\n return pattern;\n }\n }\n _getLinearGradient() {\n return this._getCache(linearGradient, this.__getLinearGradient);\n }\n __getLinearGradient() {\n var colorStops = this.fillLinearGradientColorStops();\n if (colorStops) {\n var ctx = getDummyContext();\n var start = this.fillLinearGradientStartPoint();\n var end = this.fillLinearGradientEndPoint();\n var grd = ctx.createLinearGradient(start.x, start.y, end.x, end.y);\n for (var n = 0; n < colorStops.length; n += 2) {\n grd.addColorStop(colorStops[n], colorStops[n + 1]);\n }\n return grd;\n }\n }\n _getRadialGradient() {\n return this._getCache(radialGradient, this.__getRadialGradient);\n }\n __getRadialGradient() {\n var colorStops = this.fillRadialGradientColorStops();\n if (colorStops) {\n var ctx = getDummyContext();\n var start = this.fillRadialGradientStartPoint();\n var end = this.fillRadialGradientEndPoint();\n var grd = ctx.createRadialGradient(start.x, start.y, this.fillRadialGradientStartRadius(), end.x, end.y, this.fillRadialGradientEndRadius());\n for (var n = 0; n < colorStops.length; n += 2) {\n grd.addColorStop(colorStops[n], colorStops[n + 1]);\n }\n return grd;\n }\n }\n getShadowRGBA() {\n return this._getCache(SHADOW_RGBA, this._getShadowRGBA);\n }\n _getShadowRGBA() {\n if (!this.hasShadow()) {\n return;\n }\n var rgba = Util_1.Util.colorToRGBA(this.shadowColor());\n if (rgba) {\n return ('rgba(' +\n rgba.r +\n ',' +\n rgba.g +\n ',' +\n rgba.b +\n ',' +\n rgba.a * (this.shadowOpacity() || 1) +\n ')');\n }\n }\n hasFill() {\n return this._calculate('hasFill', [\n 'fillEnabled',\n 'fill',\n 'fillPatternImage',\n 'fillLinearGradientColorStops',\n 'fillRadialGradientColorStops',\n ], () => {\n return (this.fillEnabled() &&\n !!(this.fill() ||\n this.fillPatternImage() ||\n this.fillLinearGradientColorStops() ||\n this.fillRadialGradientColorStops()));\n });\n }\n hasStroke() {\n return this._calculate('hasStroke', [\n 'strokeEnabled',\n 'strokeWidth',\n 'stroke',\n 'strokeLinearGradientColorStops',\n ], () => {\n return (this.strokeEnabled() &&\n this.strokeWidth() &&\n !!(this.stroke() || this.strokeLinearGradientColorStops()));\n });\n }\n hasHitStroke() {\n const width = this.hitStrokeWidth();\n if (width === 'auto') {\n return this.hasStroke();\n }\n return this.strokeEnabled() && !!width;\n }\n intersects(point) {\n var stage = this.getStage();\n if (!stage) {\n return false;\n }\n const bufferHitCanvas = stage.bufferHitCanvas;\n bufferHitCanvas.getContext().clear();\n this.drawHit(bufferHitCanvas, undefined, true);\n const p = bufferHitCanvas.context.getImageData(Math.round(point.x), Math.round(point.y), 1, 1).data;\n return p[3] > 0;\n }\n destroy() {\n Node_1.Node.prototype.destroy.call(this);\n delete exports.shapes[this.colorKey];\n delete this.colorKey;\n return this;\n }\n _useBufferCanvas(forceFill) {\n var _a;\n const perfectDrawEnabled = (_a = this.attrs.perfectDrawEnabled) !== null && _a !== void 0 ? _a : true;\n if (!perfectDrawEnabled) {\n return false;\n }\n const hasFill = forceFill || this.hasFill();\n const hasStroke = this.hasStroke();\n const isTransparent = this.getAbsoluteOpacity() !== 1;\n if (hasFill && hasStroke && isTransparent) {\n return true;\n }\n const hasShadow = this.hasShadow();\n const strokeForShadow = this.shadowForStrokeEnabled();\n if (hasFill && hasStroke && hasShadow && strokeForShadow) {\n return true;\n }\n return false;\n }\n setStrokeHitEnabled(val) {\n Util_1.Util.warn('strokeHitEnabled property is deprecated. Please use hitStrokeWidth instead.');\n if (val) {\n this.hitStrokeWidth('auto');\n }\n else {\n this.hitStrokeWidth(0);\n }\n }\n getStrokeHitEnabled() {\n if (this.hitStrokeWidth() === 0) {\n return false;\n }\n else {\n return true;\n }\n }\n getSelfRect() {\n var size = this.size();\n return {\n x: this._centroid ? -size.width / 2 : 0,\n y: this._centroid ? -size.height / 2 : 0,\n width: size.width,\n height: size.height,\n };\n }\n getClientRect(config = {}) {\n const skipTransform = config.skipTransform;\n const relativeTo = config.relativeTo;\n const fillRect = this.getSelfRect();\n const applyStroke = !config.skipStroke && this.hasStroke();\n const strokeWidth = (applyStroke && this.strokeWidth()) || 0;\n const fillAndStrokeWidth = fillRect.width + strokeWidth;\n const fillAndStrokeHeight = fillRect.height + strokeWidth;\n const applyShadow = !config.skipShadow && this.hasShadow();\n const shadowOffsetX = applyShadow ? this.shadowOffsetX() : 0;\n const shadowOffsetY = applyShadow ? this.shadowOffsetY() : 0;\n const preWidth = fillAndStrokeWidth + Math.abs(shadowOffsetX);\n const preHeight = fillAndStrokeHeight + Math.abs(shadowOffsetY);\n const blurRadius = (applyShadow && this.shadowBlur()) || 0;\n const width = preWidth + blurRadius * 2;\n const height = preHeight + blurRadius * 2;\n const rect = {\n width: width,\n height: height,\n x: -(strokeWidth / 2 + blurRadius) +\n Math.min(shadowOffsetX, 0) +\n fillRect.x,\n y: -(strokeWidth / 2 + blurRadius) +\n Math.min(shadowOffsetY, 0) +\n fillRect.y,\n };\n if (!skipTransform) {\n return this._transformedRect(rect, relativeTo);\n }\n return rect;\n }\n drawScene(can, top, bufferCanvas) {\n var layer = this.getLayer();\n var canvas = can || layer.getCanvas(), context = canvas.getContext(), cachedCanvas = this._getCanvasCache(), drawFunc = this.getSceneFunc(), hasShadow = this.hasShadow(), stage, bufferContext;\n var skipBuffer = canvas.isCache;\n var cachingSelf = top === this;\n if (!this.isVisible() && !cachingSelf) {\n return this;\n }\n if (cachedCanvas) {\n context.save();\n var m = this.getAbsoluteTransform(top).getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n this._drawCachedSceneCanvas(context);\n context.restore();\n return this;\n }\n if (!drawFunc) {\n return this;\n }\n context.save();\n if (this._useBufferCanvas() && !skipBuffer) {\n stage = this.getStage();\n const bc = bufferCanvas || stage.bufferCanvas;\n bufferContext = bc.getContext();\n bufferContext.clear();\n bufferContext.save();\n bufferContext._applyLineJoin(this);\n var o = this.getAbsoluteTransform(top).getMatrix();\n bufferContext.transform(o[0], o[1], o[2], o[3], o[4], o[5]);\n drawFunc.call(this, bufferContext, this);\n bufferContext.restore();\n var ratio = bc.pixelRatio;\n if (hasShadow) {\n context._applyShadow(this);\n }\n context._applyOpacity(this);\n context._applyGlobalCompositeOperation(this);\n context.drawImage(bc._canvas, 0, 0, bc.width / ratio, bc.height / ratio);\n }\n else {\n context._applyLineJoin(this);\n if (!cachingSelf) {\n var o = this.getAbsoluteTransform(top).getMatrix();\n context.transform(o[0], o[1], o[2], o[3], o[4], o[5]);\n context._applyOpacity(this);\n context._applyGlobalCompositeOperation(this);\n }\n if (hasShadow) {\n context._applyShadow(this);\n }\n drawFunc.call(this, context, this);\n }\n context.restore();\n return this;\n }\n drawHit(can, top, skipDragCheck = false) {\n if (!this.shouldDrawHit(top, skipDragCheck)) {\n return this;\n }\n var layer = this.getLayer(), canvas = can || layer.hitCanvas, context = canvas && canvas.getContext(), drawFunc = this.hitFunc() || this.sceneFunc(), cachedCanvas = this._getCanvasCache(), cachedHitCanvas = cachedCanvas && cachedCanvas.hit;\n if (!this.colorKey) {\n Util_1.Util.warn('Looks like your canvas has a destroyed shape in it. Do not reuse shape after you destroyed it. If you want to reuse shape you should call remove() instead of destroy()');\n }\n if (cachedHitCanvas) {\n context.save();\n var m = this.getAbsoluteTransform(top).getMatrix();\n context.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n this._drawCachedHitCanvas(context);\n context.restore();\n return this;\n }\n if (!drawFunc) {\n return this;\n }\n context.save();\n context._applyLineJoin(this);\n const selfCache = this === top;\n if (!selfCache) {\n var o = this.getAbsoluteTransform(top).getMatrix();\n context.transform(o[0], o[1], o[2], o[3], o[4], o[5]);\n }\n drawFunc.call(this, context, this);\n context.restore();\n return this;\n }\n drawHitFromCache(alphaThreshold = 0) {\n var cachedCanvas = this._getCanvasCache(), sceneCanvas = this._getCachedSceneCanvas(), hitCanvas = cachedCanvas.hit, hitContext = hitCanvas.getContext(), hitWidth = hitCanvas.getWidth(), hitHeight = hitCanvas.getHeight(), hitImageData, hitData, len, rgbColorKey, i, alpha;\n hitContext.clear();\n hitContext.drawImage(sceneCanvas._canvas, 0, 0, hitWidth, hitHeight);\n try {\n hitImageData = hitContext.getImageData(0, 0, hitWidth, hitHeight);\n hitData = hitImageData.data;\n len = hitData.length;\n rgbColorKey = Util_1.Util._hexToRgb(this.colorKey);\n for (i = 0; i < len; i += 4) {\n alpha = hitData[i + 3];\n if (alpha > alphaThreshold) {\n hitData[i] = rgbColorKey.r;\n hitData[i + 1] = rgbColorKey.g;\n hitData[i + 2] = rgbColorKey.b;\n hitData[i + 3] = 255;\n }\n else {\n hitData[i + 3] = 0;\n }\n }\n hitContext.putImageData(hitImageData, 0, 0);\n }\n catch (e) {\n Util_1.Util.error('Unable to draw hit graph from cached scene canvas. ' + e.message);\n }\n return this;\n }\n hasPointerCapture(pointerId) {\n return PointerEvents.hasPointerCapture(pointerId, this);\n }\n setPointerCapture(pointerId) {\n PointerEvents.setPointerCapture(pointerId, this);\n }\n releaseCapture(pointerId) {\n PointerEvents.releaseCapture(pointerId, this);\n }\n}\nexports.Shape = Shape;\nShape.prototype._fillFunc = _fillFunc;\nShape.prototype._strokeFunc = _strokeFunc;\nShape.prototype._fillFuncHit = _fillFuncHit;\nShape.prototype._strokeFuncHit = _strokeFuncHit;\nShape.prototype._centroid = false;\nShape.prototype.nodeType = 'Shape';\n(0, Global_2._registerNode)(Shape);\nShape.prototype.eventListeners = {};\nShape.prototype.on.call(Shape.prototype, 'shadowColorChange.konva shadowBlurChange.konva shadowOffsetChange.konva shadowOpacityChange.konva shadowEnabledChange.konva', _clearHasShadowCache);\nShape.prototype.on.call(Shape.prototype, 'shadowColorChange.konva shadowOpacityChange.konva shadowEnabledChange.konva', _clearGetShadowRGBACache);\nShape.prototype.on.call(Shape.prototype, 'fillPriorityChange.konva fillPatternImageChange.konva fillPatternRepeatChange.konva fillPatternScaleXChange.konva fillPatternScaleYChange.konva fillPatternOffsetXChange.konva fillPatternOffsetYChange.konva fillPatternXChange.konva fillPatternYChange.konva fillPatternRotationChange.konva', _clearFillPatternCache);\nShape.prototype.on.call(Shape.prototype, 'fillPriorityChange.konva fillLinearGradientColorStopsChange.konva fillLinearGradientStartPointXChange.konva fillLinearGradientStartPointYChange.konva fillLinearGradientEndPointXChange.konva fillLinearGradientEndPointYChange.konva', _clearLinearGradientCache);\nShape.prototype.on.call(Shape.prototype, 'fillPriorityChange.konva fillRadialGradientColorStopsChange.konva fillRadialGradientStartPointXChange.konva fillRadialGradientStartPointYChange.konva fillRadialGradientEndPointXChange.konva fillRadialGradientEndPointYChange.konva fillRadialGradientStartRadiusChange.konva fillRadialGradientEndRadiusChange.konva', _clearRadialGradientCache);\nFactory_1.Factory.addGetterSetter(Shape, 'stroke', undefined, (0, Validators_1.getStringOrGradientValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'strokeWidth', 2, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillAfterStrokeEnabled', false);\nFactory_1.Factory.addGetterSetter(Shape, 'hitStrokeWidth', 'auto', (0, Validators_1.getNumberOrAutoValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'strokeHitEnabled', true, (0, Validators_1.getBooleanValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'perfectDrawEnabled', true, (0, Validators_1.getBooleanValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'shadowForStrokeEnabled', true, (0, Validators_1.getBooleanValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'lineJoin');\nFactory_1.Factory.addGetterSetter(Shape, 'lineCap');\nFactory_1.Factory.addGetterSetter(Shape, 'sceneFunc');\nFactory_1.Factory.addGetterSetter(Shape, 'hitFunc');\nFactory_1.Factory.addGetterSetter(Shape, 'dash');\nFactory_1.Factory.addGetterSetter(Shape, 'dashOffset', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'shadowColor', undefined, (0, Validators_1.getStringValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'shadowBlur', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'shadowOpacity', 1, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'shadowOffset', ['x', 'y']);\nFactory_1.Factory.addGetterSetter(Shape, 'shadowOffsetX', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'shadowOffsetY', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternImage');\nFactory_1.Factory.addGetterSetter(Shape, 'fill', undefined, (0, Validators_1.getStringOrGradientValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternX', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternY', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillLinearGradientColorStops');\nFactory_1.Factory.addGetterSetter(Shape, 'strokeLinearGradientColorStops');\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientStartRadius', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientEndRadius', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientColorStops');\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternRepeat', 'repeat');\nFactory_1.Factory.addGetterSetter(Shape, 'fillEnabled', true);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeEnabled', true);\nFactory_1.Factory.addGetterSetter(Shape, 'shadowEnabled', true);\nFactory_1.Factory.addGetterSetter(Shape, 'dashEnabled', true);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeScaleEnabled', true);\nFactory_1.Factory.addGetterSetter(Shape, 'fillPriority', 'color');\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillPatternOffset', ['x', 'y']);\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternOffsetX', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternOffsetY', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillPatternScale', ['x', 'y']);\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternScaleX', 1, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternScaleY', 1, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillLinearGradientStartPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'strokeLinearGradientStartPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addGetterSetter(Shape, 'fillLinearGradientStartPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeLinearGradientStartPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillLinearGradientStartPointY', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeLinearGradientStartPointY', 0);\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillLinearGradientEndPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'strokeLinearGradientEndPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addGetterSetter(Shape, 'fillLinearGradientEndPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeLinearGradientEndPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillLinearGradientEndPointY', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'strokeLinearGradientEndPointY', 0);\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillRadialGradientStartPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientStartPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientStartPointY', 0);\nFactory_1.Factory.addComponentsGetterSetter(Shape, 'fillRadialGradientEndPoint', [\n 'x',\n 'y',\n]);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientEndPointX', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRadialGradientEndPointY', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillPatternRotation', 0);\nFactory_1.Factory.addGetterSetter(Shape, 'fillRule', undefined, (0, Validators_1.getStringValidator)());\nFactory_1.Factory.backCompat(Shape, {\n dashArray: 'dash',\n getDashArray: 'getDash',\n setDashArray: 'getDash',\n drawFunc: 'sceneFunc',\n getDrawFunc: 'getSceneFunc',\n setDrawFunc: 'setSceneFunc',\n drawHitFunc: 'hitFunc',\n getDrawHitFunc: 'getHitFunc',\n setDrawHitFunc: 'setHitFunc',\n});\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Stage = exports.stages = void 0;\nconst Util_1 = require(\"./Util\");\nconst Factory_1 = require(\"./Factory\");\nconst Container_1 = require(\"./Container\");\nconst Global_1 = require(\"./Global\");\nconst Canvas_1 = require(\"./Canvas\");\nconst DragAndDrop_1 = require(\"./DragAndDrop\");\nconst Global_2 = require(\"./Global\");\nconst PointerEvents = require(\"./PointerEvents\");\nvar STAGE = 'Stage', STRING = 'string', PX = 'px', MOUSEOUT = 'mouseout', MOUSELEAVE = 'mouseleave', MOUSEOVER = 'mouseover', MOUSEENTER = 'mouseenter', MOUSEMOVE = 'mousemove', MOUSEDOWN = 'mousedown', MOUSEUP = 'mouseup', POINTERMOVE = 'pointermove', POINTERDOWN = 'pointerdown', POINTERUP = 'pointerup', POINTERCANCEL = 'pointercancel', LOSTPOINTERCAPTURE = 'lostpointercapture', POINTEROUT = 'pointerout', POINTERLEAVE = 'pointerleave', POINTEROVER = 'pointerover', POINTERENTER = 'pointerenter', CONTEXTMENU = 'contextmenu', TOUCHSTART = 'touchstart', TOUCHEND = 'touchend', TOUCHMOVE = 'touchmove', TOUCHCANCEL = 'touchcancel', WHEEL = 'wheel', MAX_LAYERS_NUMBER = 5, EVENTS = [\n [MOUSEENTER, '_pointerenter'],\n [MOUSEDOWN, '_pointerdown'],\n [MOUSEMOVE, '_pointermove'],\n [MOUSEUP, '_pointerup'],\n [MOUSELEAVE, '_pointerleave'],\n [TOUCHSTART, '_pointerdown'],\n [TOUCHMOVE, '_pointermove'],\n [TOUCHEND, '_pointerup'],\n [TOUCHCANCEL, '_pointercancel'],\n [MOUSEOVER, '_pointerover'],\n [WHEEL, '_wheel'],\n [CONTEXTMENU, '_contextmenu'],\n [POINTERDOWN, '_pointerdown'],\n [POINTERMOVE, '_pointermove'],\n [POINTERUP, '_pointerup'],\n [POINTERCANCEL, '_pointercancel'],\n [LOSTPOINTERCAPTURE, '_lostpointercapture'],\n];\nconst EVENTS_MAP = {\n mouse: {\n [POINTEROUT]: MOUSEOUT,\n [POINTERLEAVE]: MOUSELEAVE,\n [POINTEROVER]: MOUSEOVER,\n [POINTERENTER]: MOUSEENTER,\n [POINTERMOVE]: MOUSEMOVE,\n [POINTERDOWN]: MOUSEDOWN,\n [POINTERUP]: MOUSEUP,\n [POINTERCANCEL]: 'mousecancel',\n pointerclick: 'click',\n pointerdblclick: 'dblclick',\n },\n touch: {\n [POINTEROUT]: 'touchout',\n [POINTERLEAVE]: 'touchleave',\n [POINTEROVER]: 'touchover',\n [POINTERENTER]: 'touchenter',\n [POINTERMOVE]: TOUCHMOVE,\n [POINTERDOWN]: TOUCHSTART,\n [POINTERUP]: TOUCHEND,\n [POINTERCANCEL]: TOUCHCANCEL,\n pointerclick: 'tap',\n pointerdblclick: 'dbltap',\n },\n pointer: {\n [POINTEROUT]: POINTEROUT,\n [POINTERLEAVE]: POINTERLEAVE,\n [POINTEROVER]: POINTEROVER,\n [POINTERENTER]: POINTERENTER,\n [POINTERMOVE]: POINTERMOVE,\n [POINTERDOWN]: POINTERDOWN,\n [POINTERUP]: POINTERUP,\n [POINTERCANCEL]: POINTERCANCEL,\n pointerclick: 'pointerclick',\n pointerdblclick: 'pointerdblclick',\n },\n};\nconst getEventType = (type) => {\n if (type.indexOf('pointer') >= 0) {\n return 'pointer';\n }\n if (type.indexOf('touch') >= 0) {\n return 'touch';\n }\n return 'mouse';\n};\nconst getEventsMap = (eventType) => {\n const type = getEventType(eventType);\n if (type === 'pointer') {\n return Global_1.Konva.pointerEventsEnabled && EVENTS_MAP.pointer;\n }\n if (type === 'touch') {\n return EVENTS_MAP.touch;\n }\n if (type === 'mouse') {\n return EVENTS_MAP.mouse;\n }\n};\nfunction checkNoClip(attrs = {}) {\n if (attrs.clipFunc || attrs.clipWidth || attrs.clipHeight) {\n Util_1.Util.warn('Stage does not support clipping. Please use clip for Layers or Groups.');\n }\n return attrs;\n}\nconst NO_POINTERS_MESSAGE = `Pointer position is missing and not registered by the stage. Looks like it is outside of the stage container. You can set it manually from event: stage.setPointersPositions(event);`;\nexports.stages = [];\nclass Stage extends Container_1.Container {\n constructor(config) {\n super(checkNoClip(config));\n this._pointerPositions = [];\n this._changedPointerPositions = [];\n this._buildDOM();\n this._bindContentEvents();\n exports.stages.push(this);\n this.on('widthChange.konva heightChange.konva', this._resizeDOM);\n this.on('visibleChange.konva', this._checkVisibility);\n this.on('clipWidthChange.konva clipHeightChange.konva clipFuncChange.konva', () => {\n checkNoClip(this.attrs);\n });\n this._checkVisibility();\n }\n _validateAdd(child) {\n const isLayer = child.getType() === 'Layer';\n const isFastLayer = child.getType() === 'FastLayer';\n const valid = isLayer || isFastLayer;\n if (!valid) {\n Util_1.Util.throw('You may only add layers to the stage.');\n }\n }\n _checkVisibility() {\n if (!this.content) {\n return;\n }\n const style = this.visible() ? '' : 'none';\n this.content.style.display = style;\n }\n setContainer(container) {\n if (typeof container === STRING) {\n if (container.charAt(0) === '.') {\n var className = container.slice(1);\n container = document.getElementsByClassName(className)[0];\n }\n else {\n var id;\n if (container.charAt(0) !== '#') {\n id = container;\n }\n else {\n id = container.slice(1);\n }\n container = document.getElementById(id);\n }\n if (!container) {\n throw 'Can not find container in document with id ' + id;\n }\n }\n this._setAttr('container', container);\n if (this.content) {\n if (this.content.parentElement) {\n this.content.parentElement.removeChild(this.content);\n }\n container.appendChild(this.content);\n }\n return this;\n }\n shouldDrawHit() {\n return true;\n }\n clear() {\n var layers = this.children, len = layers.length, n;\n for (n = 0; n < len; n++) {\n layers[n].clear();\n }\n return this;\n }\n clone(obj) {\n if (!obj) {\n obj = {};\n }\n obj.container =\n typeof document !== 'undefined' && document.createElement('div');\n return Container_1.Container.prototype.clone.call(this, obj);\n }\n destroy() {\n super.destroy();\n var content = this.content;\n if (content && Util_1.Util._isInDocument(content)) {\n this.container().removeChild(content);\n }\n var index = exports.stages.indexOf(this);\n if (index > -1) {\n exports.stages.splice(index, 1);\n }\n Util_1.Util.releaseCanvas(this.bufferCanvas._canvas, this.bufferHitCanvas._canvas);\n return this;\n }\n getPointerPosition() {\n const pos = this._pointerPositions[0] || this._changedPointerPositions[0];\n if (!pos) {\n Util_1.Util.warn(NO_POINTERS_MESSAGE);\n return null;\n }\n return {\n x: pos.x,\n y: pos.y,\n };\n }\n _getPointerById(id) {\n return this._pointerPositions.find((p) => p.id === id);\n }\n getPointersPositions() {\n return this._pointerPositions;\n }\n getStage() {\n return this;\n }\n getContent() {\n return this.content;\n }\n _toKonvaCanvas(config) {\n config = config || {};\n config.x = config.x || 0;\n config.y = config.y || 0;\n config.width = config.width || this.width();\n config.height = config.height || this.height();\n var canvas = new Canvas_1.SceneCanvas({\n width: config.width,\n height: config.height,\n pixelRatio: config.pixelRatio || 1,\n });\n var _context = canvas.getContext()._context;\n var layers = this.children;\n if (config.x || config.y) {\n _context.translate(-1 * config.x, -1 * config.y);\n }\n layers.forEach(function (layer) {\n if (!layer.isVisible()) {\n return;\n }\n var layerCanvas = layer._toKonvaCanvas(config);\n _context.drawImage(layerCanvas._canvas, config.x, config.y, layerCanvas.getWidth() / layerCanvas.getPixelRatio(), layerCanvas.getHeight() / layerCanvas.getPixelRatio());\n });\n return canvas;\n }\n getIntersection(pos) {\n if (!pos) {\n return null;\n }\n var layers = this.children, len = layers.length, end = len - 1, n;\n for (n = end; n >= 0; n--) {\n const shape = layers[n].getIntersection(pos);\n if (shape) {\n return shape;\n }\n }\n return null;\n }\n _resizeDOM() {\n var width = this.width();\n var height = this.height();\n if (this.content) {\n this.content.style.width = width + PX;\n this.content.style.height = height + PX;\n }\n this.bufferCanvas.setSize(width, height);\n this.bufferHitCanvas.setSize(width, height);\n this.children.forEach((layer) => {\n layer.setSize({ width, height });\n layer.draw();\n });\n }\n add(layer, ...rest) {\n if (arguments.length > 1) {\n for (var i = 0; i < arguments.length; i++) {\n this.add(arguments[i]);\n }\n return this;\n }\n super.add(layer);\n var length = this.children.length;\n if (length > MAX_LAYERS_NUMBER) {\n Util_1.Util.warn('The stage has ' +\n length +\n ' layers. Recommended maximum number of layers is 3-5. Adding more layers into the stage may drop the performance. Rethink your tree structure, you can use Konva.Group.');\n }\n layer.setSize({ width: this.width(), height: this.height() });\n layer.draw();\n if (Global_1.Konva.isBrowser) {\n this.content.appendChild(layer.canvas._canvas);\n }\n return this;\n }\n getParent() {\n return null;\n }\n getLayer() {\n return null;\n }\n hasPointerCapture(pointerId) {\n return PointerEvents.hasPointerCapture(pointerId, this);\n }\n setPointerCapture(pointerId) {\n PointerEvents.setPointerCapture(pointerId, this);\n }\n releaseCapture(pointerId) {\n PointerEvents.releaseCapture(pointerId, this);\n }\n getLayers() {\n return this.children;\n }\n _bindContentEvents() {\n if (!Global_1.Konva.isBrowser) {\n return;\n }\n EVENTS.forEach(([event, methodName]) => {\n this.content.addEventListener(event, (evt) => {\n this[methodName](evt);\n }, { passive: false });\n });\n }\n _pointerenter(evt) {\n this.setPointersPositions(evt);\n const events = getEventsMap(evt.type);\n if (events) {\n this._fire(events.pointerenter, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n }\n }\n _pointerover(evt) {\n this.setPointersPositions(evt);\n const events = getEventsMap(evt.type);\n if (events) {\n this._fire(events.pointerover, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n }\n }\n _getTargetShape(evenType) {\n let shape = this[evenType + 'targetShape'];\n if (shape && !shape.getStage()) {\n shape = null;\n }\n return shape;\n }\n _pointerleave(evt) {\n const events = getEventsMap(evt.type);\n const eventType = getEventType(evt.type);\n if (!events) {\n return;\n }\n this.setPointersPositions(evt);\n var targetShape = this._getTargetShape(eventType);\n var eventsEnabled = !(Global_1.Konva.isDragging() || Global_1.Konva.isTransforming()) || Global_1.Konva.hitOnDragEnabled;\n if (targetShape && eventsEnabled) {\n targetShape._fireAndBubble(events.pointerout, { evt: evt });\n targetShape._fireAndBubble(events.pointerleave, { evt: evt });\n this._fire(events.pointerleave, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n this[eventType + 'targetShape'] = null;\n }\n else if (eventsEnabled) {\n this._fire(events.pointerleave, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n this._fire(events.pointerout, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n }\n this.pointerPos = null;\n this._pointerPositions = [];\n }\n _pointerdown(evt) {\n const events = getEventsMap(evt.type);\n const eventType = getEventType(evt.type);\n if (!events) {\n return;\n }\n this.setPointersPositions(evt);\n var triggeredOnShape = false;\n this._changedPointerPositions.forEach((pos) => {\n var shape = this.getIntersection(pos);\n DragAndDrop_1.DD.justDragged = false;\n Global_1.Konva['_' + eventType + 'ListenClick'] = true;\n if (!shape || !shape.isListening()) {\n return;\n }\n if (Global_1.Konva.capturePointerEventsEnabled) {\n shape.setPointerCapture(pos.id);\n }\n this[eventType + 'ClickStartShape'] = shape;\n shape._fireAndBubble(events.pointerdown, {\n evt: evt,\n pointerId: pos.id,\n });\n triggeredOnShape = true;\n const isTouch = evt.type.indexOf('touch') >= 0;\n if (shape.preventDefault() && evt.cancelable && isTouch) {\n evt.preventDefault();\n }\n });\n if (!triggeredOnShape) {\n this._fire(events.pointerdown, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId: this._pointerPositions[0].id,\n });\n }\n }\n _pointermove(evt) {\n const events = getEventsMap(evt.type);\n const eventType = getEventType(evt.type);\n if (!events) {\n return;\n }\n if (Global_1.Konva.isDragging() && DragAndDrop_1.DD.node.preventDefault() && evt.cancelable) {\n evt.preventDefault();\n }\n this.setPointersPositions(evt);\n var eventsEnabled = !(Global_1.Konva.isDragging() || Global_1.Konva.isTransforming()) || Global_1.Konva.hitOnDragEnabled;\n if (!eventsEnabled) {\n return;\n }\n var processedShapesIds = {};\n let triggeredOnShape = false;\n var targetShape = this._getTargetShape(eventType);\n this._changedPointerPositions.forEach((pos) => {\n const shape = (PointerEvents.getCapturedShape(pos.id) ||\n this.getIntersection(pos));\n const pointerId = pos.id;\n const event = { evt: evt, pointerId };\n var differentTarget = targetShape !== shape;\n if (differentTarget && targetShape) {\n targetShape._fireAndBubble(events.pointerout, { ...event }, shape);\n targetShape._fireAndBubble(events.pointerleave, { ...event }, shape);\n }\n if (shape) {\n if (processedShapesIds[shape._id]) {\n return;\n }\n processedShapesIds[shape._id] = true;\n }\n if (shape && shape.isListening()) {\n triggeredOnShape = true;\n if (differentTarget) {\n shape._fireAndBubble(events.pointerover, { ...event }, targetShape);\n shape._fireAndBubble(events.pointerenter, { ...event }, targetShape);\n this[eventType + 'targetShape'] = shape;\n }\n shape._fireAndBubble(events.pointermove, { ...event });\n }\n else {\n if (targetShape) {\n this._fire(events.pointerover, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId,\n });\n this[eventType + 'targetShape'] = null;\n }\n }\n });\n if (!triggeredOnShape) {\n this._fire(events.pointermove, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId: this._changedPointerPositions[0].id,\n });\n }\n }\n _pointerup(evt) {\n const events = getEventsMap(evt.type);\n const eventType = getEventType(evt.type);\n if (!events) {\n return;\n }\n this.setPointersPositions(evt);\n const clickStartShape = this[eventType + 'ClickStartShape'];\n const clickEndShape = this[eventType + 'ClickEndShape'];\n var processedShapesIds = {};\n let triggeredOnShape = false;\n this._changedPointerPositions.forEach((pos) => {\n const shape = (PointerEvents.getCapturedShape(pos.id) ||\n this.getIntersection(pos));\n if (shape) {\n shape.releaseCapture(pos.id);\n if (processedShapesIds[shape._id]) {\n return;\n }\n processedShapesIds[shape._id] = true;\n }\n const pointerId = pos.id;\n const event = { evt: evt, pointerId };\n let fireDblClick = false;\n if (Global_1.Konva['_' + eventType + 'InDblClickWindow']) {\n fireDblClick = true;\n clearTimeout(this[eventType + 'DblTimeout']);\n }\n else if (!DragAndDrop_1.DD.justDragged) {\n Global_1.Konva['_' + eventType + 'InDblClickWindow'] = true;\n clearTimeout(this[eventType + 'DblTimeout']);\n }\n this[eventType + 'DblTimeout'] = setTimeout(function () {\n Global_1.Konva['_' + eventType + 'InDblClickWindow'] = false;\n }, Global_1.Konva.dblClickWindow);\n if (shape && shape.isListening()) {\n triggeredOnShape = true;\n this[eventType + 'ClickEndShape'] = shape;\n shape._fireAndBubble(events.pointerup, { ...event });\n if (Global_1.Konva['_' + eventType + 'ListenClick'] &&\n clickStartShape &&\n clickStartShape === shape) {\n shape._fireAndBubble(events.pointerclick, { ...event });\n if (fireDblClick && clickEndShape && clickEndShape === shape) {\n shape._fireAndBubble(events.pointerdblclick, { ...event });\n }\n }\n }\n else {\n this[eventType + 'ClickEndShape'] = null;\n if (Global_1.Konva['_' + eventType + 'ListenClick']) {\n this._fire(events.pointerclick, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId,\n });\n }\n if (fireDblClick) {\n this._fire(events.pointerdblclick, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId,\n });\n }\n }\n });\n if (!triggeredOnShape) {\n this._fire(events.pointerup, {\n evt: evt,\n target: this,\n currentTarget: this,\n pointerId: this._changedPointerPositions[0].id,\n });\n }\n Global_1.Konva['_' + eventType + 'ListenClick'] = false;\n if (evt.cancelable && eventType !== 'touch') {\n evt.preventDefault();\n }\n }\n _contextmenu(evt) {\n this.setPointersPositions(evt);\n var shape = this.getIntersection(this.getPointerPosition());\n if (shape && shape.isListening()) {\n shape._fireAndBubble(CONTEXTMENU, { evt: evt });\n }\n else {\n this._fire(CONTEXTMENU, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n }\n }\n _wheel(evt) {\n this.setPointersPositions(evt);\n var shape = this.getIntersection(this.getPointerPosition());\n if (shape && shape.isListening()) {\n shape._fireAndBubble(WHEEL, { evt: evt });\n }\n else {\n this._fire(WHEEL, {\n evt: evt,\n target: this,\n currentTarget: this,\n });\n }\n }\n _pointercancel(evt) {\n this.setPointersPositions(evt);\n const shape = PointerEvents.getCapturedShape(evt.pointerId) ||\n this.getIntersection(this.getPointerPosition());\n if (shape) {\n shape._fireAndBubble(POINTERUP, PointerEvents.createEvent(evt));\n }\n PointerEvents.releaseCapture(evt.pointerId);\n }\n _lostpointercapture(evt) {\n PointerEvents.releaseCapture(evt.pointerId);\n }\n setPointersPositions(evt) {\n var contentPosition = this._getContentPosition(), x = null, y = null;\n evt = evt ? evt : window.event;\n if (evt.touches !== undefined) {\n this._pointerPositions = [];\n this._changedPointerPositions = [];\n Array.prototype.forEach.call(evt.touches, (touch) => {\n this._pointerPositions.push({\n id: touch.identifier,\n x: (touch.clientX - contentPosition.left) / contentPosition.scaleX,\n y: (touch.clientY - contentPosition.top) / contentPosition.scaleY,\n });\n });\n Array.prototype.forEach.call(evt.changedTouches || evt.touches, (touch) => {\n this._changedPointerPositions.push({\n id: touch.identifier,\n x: (touch.clientX - contentPosition.left) / contentPosition.scaleX,\n y: (touch.clientY - contentPosition.top) / contentPosition.scaleY,\n });\n });\n }\n else {\n x = (evt.clientX - contentPosition.left) / contentPosition.scaleX;\n y = (evt.clientY - contentPosition.top) / contentPosition.scaleY;\n this.pointerPos = {\n x: x,\n y: y,\n };\n this._pointerPositions = [{ x, y, id: Util_1.Util._getFirstPointerId(evt) }];\n this._changedPointerPositions = [\n { x, y, id: Util_1.Util._getFirstPointerId(evt) },\n ];\n }\n }\n _setPointerPosition(evt) {\n Util_1.Util.warn('Method _setPointerPosition is deprecated. Use \"stage.setPointersPositions(event)\" instead.');\n this.setPointersPositions(evt);\n }\n _getContentPosition() {\n if (!this.content || !this.content.getBoundingClientRect) {\n return {\n top: 0,\n left: 0,\n scaleX: 1,\n scaleY: 1,\n };\n }\n var rect = this.content.getBoundingClientRect();\n return {\n top: rect.top,\n left: rect.left,\n scaleX: rect.width / this.content.clientWidth || 1,\n scaleY: rect.height / this.content.clientHeight || 1,\n };\n }\n _buildDOM() {\n this.bufferCanvas = new Canvas_1.SceneCanvas({\n width: this.width(),\n height: this.height(),\n });\n this.bufferHitCanvas = new Canvas_1.HitCanvas({\n pixelRatio: 1,\n width: this.width(),\n height: this.height(),\n });\n if (!Global_1.Konva.isBrowser) {\n return;\n }\n var container = this.container();\n if (!container) {\n throw 'Stage has no container. A container is required.';\n }\n container.innerHTML = '';\n this.content = document.createElement('div');\n this.content.style.position = 'relative';\n this.content.style.userSelect = 'none';\n this.content.className = 'konvajs-content';\n this.content.setAttribute('role', 'presentation');\n container.appendChild(this.content);\n this._resizeDOM();\n }\n cache() {\n Util_1.Util.warn('Cache function is not allowed for stage. You may use cache only for layers, groups and shapes.');\n return this;\n }\n clearCache() {\n return this;\n }\n batchDraw() {\n this.getChildren().forEach(function (layer) {\n layer.batchDraw();\n });\n return this;\n }\n}\nexports.Stage = Stage;\nStage.prototype.nodeType = STAGE;\n(0, Global_2._registerNode)(Stage);\nFactory_1.Factory.addGetterSetter(Stage, 'container');\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Easings = exports.Tween = void 0;\nconst Util_1 = require(\"./Util\");\nconst Animation_1 = require(\"./Animation\");\nconst Node_1 = require(\"./Node\");\nconst Global_1 = require(\"./Global\");\nvar blacklist = {\n node: 1,\n duration: 1,\n easing: 1,\n onFinish: 1,\n yoyo: 1,\n}, PAUSED = 1, PLAYING = 2, REVERSING = 3, idCounter = 0, colorAttrs = ['fill', 'stroke', 'shadowColor'];\nclass TweenEngine {\n constructor(prop, propFunc, func, begin, finish, duration, yoyo) {\n this.prop = prop;\n this.propFunc = propFunc;\n this.begin = begin;\n this._pos = begin;\n this.duration = duration;\n this._change = 0;\n this.prevPos = 0;\n this.yoyo = yoyo;\n this._time = 0;\n this._position = 0;\n this._startTime = 0;\n this._finish = 0;\n this.func = func;\n this._change = finish - this.begin;\n this.pause();\n }\n fire(str) {\n var handler = this[str];\n if (handler) {\n handler();\n }\n }\n setTime(t) {\n if (t > this.duration) {\n if (this.yoyo) {\n this._time = this.duration;\n this.reverse();\n }\n else {\n this.finish();\n }\n }\n else if (t < 0) {\n if (this.yoyo) {\n this._time = 0;\n this.play();\n }\n else {\n this.reset();\n }\n }\n else {\n this._time = t;\n this.update();\n }\n }\n getTime() {\n return this._time;\n }\n setPosition(p) {\n this.prevPos = this._pos;\n this.propFunc(p);\n this._pos = p;\n }\n getPosition(t) {\n if (t === undefined) {\n t = this._time;\n }\n return this.func(t, this.begin, this._change, this.duration);\n }\n play() {\n this.state = PLAYING;\n this._startTime = this.getTimer() - this._time;\n this.onEnterFrame();\n this.fire('onPlay');\n }\n reverse() {\n this.state = REVERSING;\n this._time = this.duration - this._time;\n this._startTime = this.getTimer() - this._time;\n this.onEnterFrame();\n this.fire('onReverse');\n }\n seek(t) {\n this.pause();\n this._time = t;\n this.update();\n this.fire('onSeek');\n }\n reset() {\n this.pause();\n this._time = 0;\n this.update();\n this.fire('onReset');\n }\n finish() {\n this.pause();\n this._time = this.duration;\n this.update();\n this.fire('onFinish');\n }\n update() {\n this.setPosition(this.getPosition(this._time));\n this.fire('onUpdate');\n }\n onEnterFrame() {\n var t = this.getTimer() - this._startTime;\n if (this.state === PLAYING) {\n this.setTime(t);\n }\n else if (this.state === REVERSING) {\n this.setTime(this.duration - t);\n }\n }\n pause() {\n this.state = PAUSED;\n this.fire('onPause');\n }\n getTimer() {\n return new Date().getTime();\n }\n}\nclass Tween {\n constructor(config) {\n var that = this, node = config.node, nodeId = node._id, duration, easing = config.easing || exports.Easings.Linear, yoyo = !!config.yoyo, key;\n if (typeof config.duration === 'undefined') {\n duration = 0.3;\n }\n else if (config.duration === 0) {\n duration = 0.001;\n }\n else {\n duration = config.duration;\n }\n this.node = node;\n this._id = idCounter++;\n var layers = node.getLayer() ||\n (node instanceof Global_1.Konva['Stage'] ? node.getLayers() : null);\n if (!layers) {\n Util_1.Util.error('Tween constructor have `node` that is not in a layer. Please add node into layer first.');\n }\n this.anim = new Animation_1.Animation(function () {\n that.tween.onEnterFrame();\n }, layers);\n this.tween = new TweenEngine(key, function (i) {\n that._tweenFunc(i);\n }, easing, 0, 1, duration * 1000, yoyo);\n this._addListeners();\n if (!Tween.attrs[nodeId]) {\n Tween.attrs[nodeId] = {};\n }\n if (!Tween.attrs[nodeId][this._id]) {\n Tween.attrs[nodeId][this._id] = {};\n }\n if (!Tween.tweens[nodeId]) {\n Tween.tweens[nodeId] = {};\n }\n for (key in config) {\n if (blacklist[key] === undefined) {\n this._addAttr(key, config[key]);\n }\n }\n this.reset();\n this.onFinish = config.onFinish;\n this.onReset = config.onReset;\n this.onUpdate = config.onUpdate;\n }\n _addAttr(key, end) {\n var node = this.node, nodeId = node._id, start, diff, tweenId, n, len, trueEnd, trueStart, endRGBA;\n tweenId = Tween.tweens[nodeId][key];\n if (tweenId) {\n delete Tween.attrs[nodeId][tweenId][key];\n }\n start = node.getAttr(key);\n if (Util_1.Util._isArray(end)) {\n diff = [];\n len = Math.max(end.length, start.length);\n if (key === 'points' && end.length !== start.length) {\n if (end.length > start.length) {\n trueStart = start;\n start = Util_1.Util._prepareArrayForTween(start, end, node.closed());\n }\n else {\n trueEnd = end;\n end = Util_1.Util._prepareArrayForTween(end, start, node.closed());\n }\n }\n if (key.indexOf('fill') === 0) {\n for (n = 0; n < len; n++) {\n if (n % 2 === 0) {\n diff.push(end[n] - start[n]);\n }\n else {\n var startRGBA = Util_1.Util.colorToRGBA(start[n]);\n endRGBA = Util_1.Util.colorToRGBA(end[n]);\n start[n] = startRGBA;\n diff.push({\n r: endRGBA.r - startRGBA.r,\n g: endRGBA.g - startRGBA.g,\n b: endRGBA.b - startRGBA.b,\n a: endRGBA.a - startRGBA.a,\n });\n }\n }\n }\n else {\n for (n = 0; n < len; n++) {\n diff.push(end[n] - start[n]);\n }\n }\n }\n else if (colorAttrs.indexOf(key) !== -1) {\n start = Util_1.Util.colorToRGBA(start);\n endRGBA = Util_1.Util.colorToRGBA(end);\n diff = {\n r: endRGBA.r - start.r,\n g: endRGBA.g - start.g,\n b: endRGBA.b - start.b,\n a: endRGBA.a - start.a,\n };\n }\n else {\n diff = end - start;\n }\n Tween.attrs[nodeId][this._id][key] = {\n start: start,\n diff: diff,\n end: end,\n trueEnd: trueEnd,\n trueStart: trueStart,\n };\n Tween.tweens[nodeId][key] = this._id;\n }\n _tweenFunc(i) {\n var node = this.node, attrs = Tween.attrs[node._id][this._id], key, attr, start, diff, newVal, n, len, end;\n for (key in attrs) {\n attr = attrs[key];\n start = attr.start;\n diff = attr.diff;\n end = attr.end;\n if (Util_1.Util._isArray(start)) {\n newVal = [];\n len = Math.max(start.length, end.length);\n if (key.indexOf('fill') === 0) {\n for (n = 0; n < len; n++) {\n if (n % 2 === 0) {\n newVal.push((start[n] || 0) + diff[n] * i);\n }\n else {\n newVal.push('rgba(' +\n Math.round(start[n].r + diff[n].r * i) +\n ',' +\n Math.round(start[n].g + diff[n].g * i) +\n ',' +\n Math.round(start[n].b + diff[n].b * i) +\n ',' +\n (start[n].a + diff[n].a * i) +\n ')');\n }\n }\n }\n else {\n for (n = 0; n < len; n++) {\n newVal.push((start[n] || 0) + diff[n] * i);\n }\n }\n }\n else if (colorAttrs.indexOf(key) !== -1) {\n newVal =\n 'rgba(' +\n Math.round(start.r + diff.r * i) +\n ',' +\n Math.round(start.g + diff.g * i) +\n ',' +\n Math.round(start.b + diff.b * i) +\n ',' +\n (start.a + diff.a * i) +\n ')';\n }\n else {\n newVal = start + diff * i;\n }\n node.setAttr(key, newVal);\n }\n }\n _addListeners() {\n this.tween.onPlay = () => {\n this.anim.start();\n };\n this.tween.onReverse = () => {\n this.anim.start();\n };\n this.tween.onPause = () => {\n this.anim.stop();\n };\n this.tween.onFinish = () => {\n var node = this.node;\n var attrs = Tween.attrs[node._id][this._id];\n if (attrs.points && attrs.points.trueEnd) {\n node.setAttr('points', attrs.points.trueEnd);\n }\n if (this.onFinish) {\n this.onFinish.call(this);\n }\n };\n this.tween.onReset = () => {\n var node = this.node;\n var attrs = Tween.attrs[node._id][this._id];\n if (attrs.points && attrs.points.trueStart) {\n node.points(attrs.points.trueStart);\n }\n if (this.onReset) {\n this.onReset();\n }\n };\n this.tween.onUpdate = () => {\n if (this.onUpdate) {\n this.onUpdate.call(this);\n }\n };\n }\n play() {\n this.tween.play();\n return this;\n }\n reverse() {\n this.tween.reverse();\n return this;\n }\n reset() {\n this.tween.reset();\n return this;\n }\n seek(t) {\n this.tween.seek(t * 1000);\n return this;\n }\n pause() {\n this.tween.pause();\n return this;\n }\n finish() {\n this.tween.finish();\n return this;\n }\n destroy() {\n var nodeId = this.node._id, thisId = this._id, attrs = Tween.tweens[nodeId], key;\n this.pause();\n for (key in attrs) {\n delete Tween.tweens[nodeId][key];\n }\n delete Tween.attrs[nodeId][thisId];\n }\n}\nexports.Tween = Tween;\nTween.attrs = {};\nTween.tweens = {};\nNode_1.Node.prototype.to = function (params) {\n var onFinish = params.onFinish;\n params.node = this;\n params.onFinish = function () {\n this.destroy();\n if (onFinish) {\n onFinish();\n }\n };\n var tween = new Tween(params);\n tween.play();\n};\nexports.Easings = {\n BackEaseIn(t, b, c, d) {\n var s = 1.70158;\n return c * (t /= d) * t * ((s + 1) * t - s) + b;\n },\n BackEaseOut(t, b, c, d) {\n var s = 1.70158;\n return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;\n },\n BackEaseInOut(t, b, c, d) {\n var s = 1.70158;\n if ((t /= d / 2) < 1) {\n return (c / 2) * (t * t * (((s *= 1.525) + 1) * t - s)) + b;\n }\n return (c / 2) * ((t -= 2) * t * (((s *= 1.525) + 1) * t + s) + 2) + b;\n },\n ElasticEaseIn(t, b, c, d, a, p) {\n var s = 0;\n if (t === 0) {\n return b;\n }\n if ((t /= d) === 1) {\n return b + c;\n }\n if (!p) {\n p = d * 0.3;\n }\n if (!a || a < Math.abs(c)) {\n a = c;\n s = p / 4;\n }\n else {\n s = (p / (2 * Math.PI)) * Math.asin(c / a);\n }\n return (-(a *\n Math.pow(2, 10 * (t -= 1)) *\n Math.sin(((t * d - s) * (2 * Math.PI)) / p)) + b);\n },\n ElasticEaseOut(t, b, c, d, a, p) {\n var s = 0;\n if (t === 0) {\n return b;\n }\n if ((t /= d) === 1) {\n return b + c;\n }\n if (!p) {\n p = d * 0.3;\n }\n if (!a || a < Math.abs(c)) {\n a = c;\n s = p / 4;\n }\n else {\n s = (p / (2 * Math.PI)) * Math.asin(c / a);\n }\n return (a * Math.pow(2, -10 * t) * Math.sin(((t * d - s) * (2 * Math.PI)) / p) +\n c +\n b);\n },\n ElasticEaseInOut(t, b, c, d, a, p) {\n var s = 0;\n if (t === 0) {\n return b;\n }\n if ((t /= d / 2) === 2) {\n return b + c;\n }\n if (!p) {\n p = d * (0.3 * 1.5);\n }\n if (!a || a < Math.abs(c)) {\n a = c;\n s = p / 4;\n }\n else {\n s = (p / (2 * Math.PI)) * Math.asin(c / a);\n }\n if (t < 1) {\n return (-0.5 *\n (a *\n Math.pow(2, 10 * (t -= 1)) *\n Math.sin(((t * d - s) * (2 * Math.PI)) / p)) +\n b);\n }\n return (a *\n Math.pow(2, -10 * (t -= 1)) *\n Math.sin(((t * d - s) * (2 * Math.PI)) / p) *\n 0.5 +\n c +\n b);\n },\n BounceEaseOut(t, b, c, d) {\n if ((t /= d) < 1 / 2.75) {\n return c * (7.5625 * t * t) + b;\n }\n else if (t < 2 / 2.75) {\n return c * (7.5625 * (t -= 1.5 / 2.75) * t + 0.75) + b;\n }\n else if (t < 2.5 / 2.75) {\n return c * (7.5625 * (t -= 2.25 / 2.75) * t + 0.9375) + b;\n }\n else {\n return c * (7.5625 * (t -= 2.625 / 2.75) * t + 0.984375) + b;\n }\n },\n BounceEaseIn(t, b, c, d) {\n return c - exports.Easings.BounceEaseOut(d - t, 0, c, d) + b;\n },\n BounceEaseInOut(t, b, c, d) {\n if (t < d / 2) {\n return exports.Easings.BounceEaseIn(t * 2, 0, c, d) * 0.5 + b;\n }\n else {\n return exports.Easings.BounceEaseOut(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;\n }\n },\n EaseIn(t, b, c, d) {\n return c * (t /= d) * t + b;\n },\n EaseOut(t, b, c, d) {\n return -c * (t /= d) * (t - 2) + b;\n },\n EaseInOut(t, b, c, d) {\n if ((t /= d / 2) < 1) {\n return (c / 2) * t * t + b;\n }\n return (-c / 2) * (--t * (t - 2) - 1) + b;\n },\n StrongEaseIn(t, b, c, d) {\n return c * (t /= d) * t * t * t * t + b;\n },\n StrongEaseOut(t, b, c, d) {\n return c * ((t = t / d - 1) * t * t * t * t + 1) + b;\n },\n StrongEaseInOut(t, b, c, d) {\n if ((t /= d / 2) < 1) {\n return (c / 2) * t * t * t * t * t + b;\n }\n return (c / 2) * ((t -= 2) * t * t * t * t + 2) + b;\n },\n Linear(t, b, c, d) {\n return (c * t) / d + b;\n },\n};\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Util = exports.Transform = void 0;\nconst Global_1 = require(\"./Global\");\nclass Transform {\n constructor(m = [1, 0, 0, 1, 0, 0]) {\n this.dirty = false;\n this.m = (m && m.slice()) || [1, 0, 0, 1, 0, 0];\n }\n reset() {\n this.m[0] = 1;\n this.m[1] = 0;\n this.m[2] = 0;\n this.m[3] = 1;\n this.m[4] = 0;\n this.m[5] = 0;\n }\n copy() {\n return new Transform(this.m);\n }\n copyInto(tr) {\n tr.m[0] = this.m[0];\n tr.m[1] = this.m[1];\n tr.m[2] = this.m[2];\n tr.m[3] = this.m[3];\n tr.m[4] = this.m[4];\n tr.m[5] = this.m[5];\n }\n point(point) {\n var m = this.m;\n return {\n x: m[0] * point.x + m[2] * point.y + m[4],\n y: m[1] * point.x + m[3] * point.y + m[5],\n };\n }\n translate(x, y) {\n this.m[4] += this.m[0] * x + this.m[2] * y;\n this.m[5] += this.m[1] * x + this.m[3] * y;\n return this;\n }\n scale(sx, sy) {\n this.m[0] *= sx;\n this.m[1] *= sx;\n this.m[2] *= sy;\n this.m[3] *= sy;\n return this;\n }\n rotate(rad) {\n var c = Math.cos(rad);\n var s = Math.sin(rad);\n var m11 = this.m[0] * c + this.m[2] * s;\n var m12 = this.m[1] * c + this.m[3] * s;\n var m21 = this.m[0] * -s + this.m[2] * c;\n var m22 = this.m[1] * -s + this.m[3] * c;\n this.m[0] = m11;\n this.m[1] = m12;\n this.m[2] = m21;\n this.m[3] = m22;\n return this;\n }\n getTranslation() {\n return {\n x: this.m[4],\n y: this.m[5],\n };\n }\n skew(sx, sy) {\n var m11 = this.m[0] + this.m[2] * sy;\n var m12 = this.m[1] + this.m[3] * sy;\n var m21 = this.m[2] + this.m[0] * sx;\n var m22 = this.m[3] + this.m[1] * sx;\n this.m[0] = m11;\n this.m[1] = m12;\n this.m[2] = m21;\n this.m[3] = m22;\n return this;\n }\n multiply(matrix) {\n var m11 = this.m[0] * matrix.m[0] + this.m[2] * matrix.m[1];\n var m12 = this.m[1] * matrix.m[0] + this.m[3] * matrix.m[1];\n var m21 = this.m[0] * matrix.m[2] + this.m[2] * matrix.m[3];\n var m22 = this.m[1] * matrix.m[2] + this.m[3] * matrix.m[3];\n var dx = this.m[0] * matrix.m[4] + this.m[2] * matrix.m[5] + this.m[4];\n var dy = this.m[1] * matrix.m[4] + this.m[3] * matrix.m[5] + this.m[5];\n this.m[0] = m11;\n this.m[1] = m12;\n this.m[2] = m21;\n this.m[3] = m22;\n this.m[4] = dx;\n this.m[5] = dy;\n return this;\n }\n invert() {\n var d = 1 / (this.m[0] * this.m[3] - this.m[1] * this.m[2]);\n var m0 = this.m[3] * d;\n var m1 = -this.m[1] * d;\n var m2 = -this.m[2] * d;\n var m3 = this.m[0] * d;\n var m4 = d * (this.m[2] * this.m[5] - this.m[3] * this.m[4]);\n var m5 = d * (this.m[1] * this.m[4] - this.m[0] * this.m[5]);\n this.m[0] = m0;\n this.m[1] = m1;\n this.m[2] = m2;\n this.m[3] = m3;\n this.m[4] = m4;\n this.m[5] = m5;\n return this;\n }\n getMatrix() {\n return this.m;\n }\n decompose() {\n var a = this.m[0];\n var b = this.m[1];\n var c = this.m[2];\n var d = this.m[3];\n var e = this.m[4];\n var f = this.m[5];\n var delta = a * d - b * c;\n let result = {\n x: e,\n y: f,\n rotation: 0,\n scaleX: 0,\n scaleY: 0,\n skewX: 0,\n skewY: 0,\n };\n if (a != 0 || b != 0) {\n var r = Math.sqrt(a * a + b * b);\n result.rotation = b > 0 ? Math.acos(a / r) : -Math.acos(a / r);\n result.scaleX = r;\n result.scaleY = delta / r;\n result.skewX = (a * c + b * d) / delta;\n result.skewY = 0;\n }\n else if (c != 0 || d != 0) {\n var s = Math.sqrt(c * c + d * d);\n result.rotation =\n Math.PI / 2 - (d > 0 ? Math.acos(-c / s) : -Math.acos(c / s));\n result.scaleX = delta / s;\n result.scaleY = s;\n result.skewX = 0;\n result.skewY = (a * c + b * d) / delta;\n }\n else {\n }\n result.rotation = exports.Util._getRotation(result.rotation);\n return result;\n }\n}\nexports.Transform = Transform;\nvar OBJECT_ARRAY = '[object Array]', OBJECT_NUMBER = '[object Number]', OBJECT_STRING = '[object String]', OBJECT_BOOLEAN = '[object Boolean]', PI_OVER_DEG180 = Math.PI / 180, DEG180_OVER_PI = 180 / Math.PI, HASH = '#', EMPTY_STRING = '', ZERO = '0', KONVA_WARNING = 'Konva warning: ', KONVA_ERROR = 'Konva error: ', RGB_PAREN = 'rgb(', COLORS = {\n aliceblue: [240, 248, 255],\n antiquewhite: [250, 235, 215],\n aqua: [0, 255, 255],\n aquamarine: [127, 255, 212],\n azure: [240, 255, 255],\n beige: [245, 245, 220],\n bisque: [255, 228, 196],\n black: [0, 0, 0],\n blanchedalmond: [255, 235, 205],\n blue: [0, 0, 255],\n blueviolet: [138, 43, 226],\n brown: [165, 42, 42],\n burlywood: [222, 184, 135],\n cadetblue: [95, 158, 160],\n chartreuse: [127, 255, 0],\n chocolate: [210, 105, 30],\n coral: [255, 127, 80],\n cornflowerblue: [100, 149, 237],\n cornsilk: [255, 248, 220],\n crimson: [220, 20, 60],\n cyan: [0, 255, 255],\n darkblue: [0, 0, 139],\n darkcyan: [0, 139, 139],\n darkgoldenrod: [184, 132, 11],\n darkgray: [169, 169, 169],\n darkgreen: [0, 100, 0],\n darkgrey: [169, 169, 169],\n darkkhaki: [189, 183, 107],\n darkmagenta: [139, 0, 139],\n darkolivegreen: [85, 107, 47],\n darkorange: [255, 140, 0],\n darkorchid: [153, 50, 204],\n darkred: [139, 0, 0],\n darksalmon: [233, 150, 122],\n darkseagreen: [143, 188, 143],\n darkslateblue: [72, 61, 139],\n darkslategray: [47, 79, 79],\n darkslategrey: [47, 79, 79],\n darkturquoise: [0, 206, 209],\n darkviolet: [148, 0, 211],\n deeppink: [255, 20, 147],\n deepskyblue: [0, 191, 255],\n dimgray: [105, 105, 105],\n dimgrey: [105, 105, 105],\n dodgerblue: [30, 144, 255],\n firebrick: [178, 34, 34],\n floralwhite: [255, 255, 240],\n forestgreen: [34, 139, 34],\n fuchsia: [255, 0, 255],\n gainsboro: [220, 220, 220],\n ghostwhite: [248, 248, 255],\n gold: [255, 215, 0],\n goldenrod: [218, 165, 32],\n gray: [128, 128, 128],\n green: [0, 128, 0],\n greenyellow: [173, 255, 47],\n grey: [128, 128, 128],\n honeydew: [240, 255, 240],\n hotpink: [255, 105, 180],\n indianred: [205, 92, 92],\n indigo: [75, 0, 130],\n ivory: [255, 255, 240],\n khaki: [240, 230, 140],\n lavender: [230, 230, 250],\n lavenderblush: [255, 240, 245],\n lawngreen: [124, 252, 0],\n lemonchiffon: [255, 250, 205],\n lightblue: [173, 216, 230],\n lightcoral: [240, 128, 128],\n lightcyan: [224, 255, 255],\n lightgoldenrodyellow: [250, 250, 210],\n lightgray: [211, 211, 211],\n lightgreen: [144, 238, 144],\n lightgrey: [211, 211, 211],\n lightpink: [255, 182, 193],\n lightsalmon: [255, 160, 122],\n lightseagreen: [32, 178, 170],\n lightskyblue: [135, 206, 250],\n lightslategray: [119, 136, 153],\n lightslategrey: [119, 136, 153],\n lightsteelblue: [176, 196, 222],\n lightyellow: [255, 255, 224],\n lime: [0, 255, 0],\n limegreen: [50, 205, 50],\n linen: [250, 240, 230],\n magenta: [255, 0, 255],\n maroon: [128, 0, 0],\n mediumaquamarine: [102, 205, 170],\n mediumblue: [0, 0, 205],\n mediumorchid: [186, 85, 211],\n mediumpurple: [147, 112, 219],\n mediumseagreen: [60, 179, 113],\n mediumslateblue: [123, 104, 238],\n mediumspringgreen: [0, 250, 154],\n mediumturquoise: [72, 209, 204],\n mediumvioletred: [199, 21, 133],\n midnightblue: [25, 25, 112],\n mintcream: [245, 255, 250],\n mistyrose: [255, 228, 225],\n moccasin: [255, 228, 181],\n navajowhite: [255, 222, 173],\n navy: [0, 0, 128],\n oldlace: [253, 245, 230],\n olive: [128, 128, 0],\n olivedrab: [107, 142, 35],\n orange: [255, 165, 0],\n orangered: [255, 69, 0],\n orchid: [218, 112, 214],\n palegoldenrod: [238, 232, 170],\n palegreen: [152, 251, 152],\n paleturquoise: [175, 238, 238],\n palevioletred: [219, 112, 147],\n papayawhip: [255, 239, 213],\n peachpuff: [255, 218, 185],\n peru: [205, 133, 63],\n pink: [255, 192, 203],\n plum: [221, 160, 203],\n powderblue: [176, 224, 230],\n purple: [128, 0, 128],\n rebeccapurple: [102, 51, 153],\n red: [255, 0, 0],\n rosybrown: [188, 143, 143],\n royalblue: [65, 105, 225],\n saddlebrown: [139, 69, 19],\n salmon: [250, 128, 114],\n sandybrown: [244, 164, 96],\n seagreen: [46, 139, 87],\n seashell: [255, 245, 238],\n sienna: [160, 82, 45],\n silver: [192, 192, 192],\n skyblue: [135, 206, 235],\n slateblue: [106, 90, 205],\n slategray: [119, 128, 144],\n slategrey: [119, 128, 144],\n snow: [255, 255, 250],\n springgreen: [0, 255, 127],\n steelblue: [70, 130, 180],\n tan: [210, 180, 140],\n teal: [0, 128, 128],\n thistle: [216, 191, 216],\n transparent: [255, 255, 255, 0],\n tomato: [255, 99, 71],\n turquoise: [64, 224, 208],\n violet: [238, 130, 238],\n wheat: [245, 222, 179],\n white: [255, 255, 255],\n whitesmoke: [245, 245, 245],\n yellow: [255, 255, 0],\n yellowgreen: [154, 205, 5],\n}, RGB_REGEX = /rgb\\((\\d{1,3}),(\\d{1,3}),(\\d{1,3})\\)/, animQueue = [];\nconst req = (typeof requestAnimationFrame !== 'undefined' && requestAnimationFrame) ||\n function (f) {\n setTimeout(f, 60);\n };\nexports.Util = {\n _isElement(obj) {\n return !!(obj && obj.nodeType == 1);\n },\n _isFunction(obj) {\n return !!(obj && obj.constructor && obj.call && obj.apply);\n },\n _isPlainObject(obj) {\n return !!obj && obj.constructor === Object;\n },\n _isArray(obj) {\n return Object.prototype.toString.call(obj) === OBJECT_ARRAY;\n },\n _isNumber(obj) {\n return (Object.prototype.toString.call(obj) === OBJECT_NUMBER &&\n !isNaN(obj) &&\n isFinite(obj));\n },\n _isString(obj) {\n return Object.prototype.toString.call(obj) === OBJECT_STRING;\n },\n _isBoolean(obj) {\n return Object.prototype.toString.call(obj) === OBJECT_BOOLEAN;\n },\n isObject(val) {\n return val instanceof Object;\n },\n isValidSelector(selector) {\n if (typeof selector !== 'string') {\n return false;\n }\n var firstChar = selector[0];\n return (firstChar === '#' ||\n firstChar === '.' ||\n firstChar === firstChar.toUpperCase());\n },\n _sign(number) {\n if (number === 0) {\n return 1;\n }\n if (number > 0) {\n return 1;\n }\n else {\n return -1;\n }\n },\n requestAnimFrame(callback) {\n animQueue.push(callback);\n if (animQueue.length === 1) {\n req(function () {\n const queue = animQueue;\n animQueue = [];\n queue.forEach(function (cb) {\n cb();\n });\n });\n }\n },\n createCanvasElement() {\n var canvas = document.createElement('canvas');\n try {\n canvas.style = canvas.style || {};\n }\n catch (e) { }\n return canvas;\n },\n createImageElement() {\n return document.createElement('img');\n },\n _isInDocument(el) {\n while ((el = el.parentNode)) {\n if (el == document) {\n return true;\n }\n }\n return false;\n },\n _urlToImage(url, callback) {\n var imageObj = exports.Util.createImageElement();\n imageObj.onload = function () {\n callback(imageObj);\n };\n imageObj.src = url;\n },\n _rgbToHex(r, g, b) {\n return ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);\n },\n _hexToRgb(hex) {\n hex = hex.replace(HASH, EMPTY_STRING);\n var bigint = parseInt(hex, 16);\n return {\n r: (bigint >> 16) & 255,\n g: (bigint >> 8) & 255,\n b: bigint & 255,\n };\n },\n getRandomColor() {\n var randColor = ((Math.random() * 0xffffff) << 0).toString(16);\n while (randColor.length < 6) {\n randColor = ZERO + randColor;\n }\n return HASH + randColor;\n },\n getRGB(color) {\n var rgb;\n if (color in COLORS) {\n rgb = COLORS[color];\n return {\n r: rgb[0],\n g: rgb[1],\n b: rgb[2],\n };\n }\n else if (color[0] === HASH) {\n return this._hexToRgb(color.substring(1));\n }\n else if (color.substr(0, 4) === RGB_PAREN) {\n rgb = RGB_REGEX.exec(color.replace(/ /g, ''));\n return {\n r: parseInt(rgb[1], 10),\n g: parseInt(rgb[2], 10),\n b: parseInt(rgb[3], 10),\n };\n }\n else {\n return {\n r: 0,\n g: 0,\n b: 0,\n };\n }\n },\n colorToRGBA(str) {\n str = str || 'black';\n return (exports.Util._namedColorToRBA(str) ||\n exports.Util._hex3ColorToRGBA(str) ||\n exports.Util._hex4ColorToRGBA(str) ||\n exports.Util._hex6ColorToRGBA(str) ||\n exports.Util._hex8ColorToRGBA(str) ||\n exports.Util._rgbColorToRGBA(str) ||\n exports.Util._rgbaColorToRGBA(str) ||\n exports.Util._hslColorToRGBA(str));\n },\n _namedColorToRBA(str) {\n var c = COLORS[str.toLowerCase()];\n if (!c) {\n return null;\n }\n return {\n r: c[0],\n g: c[1],\n b: c[2],\n a: 1,\n };\n },\n _rgbColorToRGBA(str) {\n if (str.indexOf('rgb(') === 0) {\n str = str.match(/rgb\\(([^)]+)\\)/)[1];\n var parts = str.split(/ *, */).map(Number);\n return {\n r: parts[0],\n g: parts[1],\n b: parts[2],\n a: 1,\n };\n }\n },\n _rgbaColorToRGBA(str) {\n if (str.indexOf('rgba(') === 0) {\n str = str.match(/rgba\\(([^)]+)\\)/)[1];\n var parts = str.split(/ *, */).map((n, index) => {\n if (n.slice(-1) === '%') {\n return index === 3 ? parseInt(n) / 100 : (parseInt(n) / 100) * 255;\n }\n return Number(n);\n });\n return {\n r: parts[0],\n g: parts[1],\n b: parts[2],\n a: parts[3],\n };\n }\n },\n _hex8ColorToRGBA(str) {\n if (str[0] === '#' && str.length === 9) {\n return {\n r: parseInt(str.slice(1, 3), 16),\n g: parseInt(str.slice(3, 5), 16),\n b: parseInt(str.slice(5, 7), 16),\n a: parseInt(str.slice(7, 9), 16) / 0xff,\n };\n }\n },\n _hex6ColorToRGBA(str) {\n if (str[0] === '#' && str.length === 7) {\n return {\n r: parseInt(str.slice(1, 3), 16),\n g: parseInt(str.slice(3, 5), 16),\n b: parseInt(str.slice(5, 7), 16),\n a: 1,\n };\n }\n },\n _hex4ColorToRGBA(str) {\n if (str[0] === '#' && str.length === 5) {\n return {\n r: parseInt(str[1] + str[1], 16),\n g: parseInt(str[2] + str[2], 16),\n b: parseInt(str[3] + str[3], 16),\n a: parseInt(str[4] + str[4], 16) / 0xff,\n };\n }\n },\n _hex3ColorToRGBA(str) {\n if (str[0] === '#' && str.length === 4) {\n return {\n r: parseInt(str[1] + str[1], 16),\n g: parseInt(str[2] + str[2], 16),\n b: parseInt(str[3] + str[3], 16),\n a: 1,\n };\n }\n },\n _hslColorToRGBA(str) {\n if (/hsl\\((\\d+),\\s*([\\d.]+)%,\\s*([\\d.]+)%\\)/g.test(str)) {\n const [_, ...hsl] = /hsl\\((\\d+),\\s*([\\d.]+)%,\\s*([\\d.]+)%\\)/g.exec(str);\n const h = Number(hsl[0]) / 360;\n const s = Number(hsl[1]) / 100;\n const l = Number(hsl[2]) / 100;\n let t2;\n let t3;\n let val;\n if (s === 0) {\n val = l * 255;\n return {\n r: Math.round(val),\n g: Math.round(val),\n b: Math.round(val),\n a: 1,\n };\n }\n if (l < 0.5) {\n t2 = l * (1 + s);\n }\n else {\n t2 = l + s - l * s;\n }\n const t1 = 2 * l - t2;\n const rgb = [0, 0, 0];\n for (let i = 0; i < 3; i++) {\n t3 = h + (1 / 3) * -(i - 1);\n if (t3 < 0) {\n t3++;\n }\n if (t3 > 1) {\n t3--;\n }\n if (6 * t3 < 1) {\n val = t1 + (t2 - t1) * 6 * t3;\n }\n else if (2 * t3 < 1) {\n val = t2;\n }\n else if (3 * t3 < 2) {\n val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;\n }\n else {\n val = t1;\n }\n rgb[i] = val * 255;\n }\n return {\n r: Math.round(rgb[0]),\n g: Math.round(rgb[1]),\n b: Math.round(rgb[2]),\n a: 1,\n };\n }\n },\n haveIntersection(r1, r2) {\n return !(r2.x > r1.x + r1.width ||\n r2.x + r2.width < r1.x ||\n r2.y > r1.y + r1.height ||\n r2.y + r2.height < r1.y);\n },\n cloneObject(obj) {\n var retObj = {};\n for (var key in obj) {\n if (this._isPlainObject(obj[key])) {\n retObj[key] = this.cloneObject(obj[key]);\n }\n else if (this._isArray(obj[key])) {\n retObj[key] = this.cloneArray(obj[key]);\n }\n else {\n retObj[key] = obj[key];\n }\n }\n return retObj;\n },\n cloneArray(arr) {\n return arr.slice(0);\n },\n degToRad(deg) {\n return deg * PI_OVER_DEG180;\n },\n radToDeg(rad) {\n return rad * DEG180_OVER_PI;\n },\n _degToRad(deg) {\n exports.Util.warn('Util._degToRad is removed. Please use public Util.degToRad instead.');\n return exports.Util.degToRad(deg);\n },\n _radToDeg(rad) {\n exports.Util.warn('Util._radToDeg is removed. Please use public Util.radToDeg instead.');\n return exports.Util.radToDeg(rad);\n },\n _getRotation(radians) {\n return Global_1.Konva.angleDeg ? exports.Util.radToDeg(radians) : radians;\n },\n _capitalize(str) {\n return str.charAt(0).toUpperCase() + str.slice(1);\n },\n throw(str) {\n throw new Error(KONVA_ERROR + str);\n },\n error(str) {\n console.error(KONVA_ERROR + str);\n },\n warn(str) {\n if (!Global_1.Konva.showWarnings) {\n return;\n }\n console.warn(KONVA_WARNING + str);\n },\n each(obj, func) {\n for (var key in obj) {\n func(key, obj[key]);\n }\n },\n _inRange(val, left, right) {\n return left <= val && val < right;\n },\n _getProjectionToSegment(x1, y1, x2, y2, x3, y3) {\n var x, y, dist;\n var pd2 = (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2);\n if (pd2 == 0) {\n x = x1;\n y = y1;\n dist = (x3 - x2) * (x3 - x2) + (y3 - y2) * (y3 - y2);\n }\n else {\n var u = ((x3 - x1) * (x2 - x1) + (y3 - y1) * (y2 - y1)) / pd2;\n if (u < 0) {\n x = x1;\n y = y1;\n dist = (x1 - x3) * (x1 - x3) + (y1 - y3) * (y1 - y3);\n }\n else if (u > 1.0) {\n x = x2;\n y = y2;\n dist = (x2 - x3) * (x2 - x3) + (y2 - y3) * (y2 - y3);\n }\n else {\n x = x1 + u * (x2 - x1);\n y = y1 + u * (y2 - y1);\n dist = (x - x3) * (x - x3) + (y - y3) * (y - y3);\n }\n }\n return [x, y, dist];\n },\n _getProjectionToLine(pt, line, isClosed) {\n var pc = exports.Util.cloneObject(pt);\n var dist = Number.MAX_VALUE;\n line.forEach(function (p1, i) {\n if (!isClosed && i === line.length - 1) {\n return;\n }\n var p2 = line[(i + 1) % line.length];\n var proj = exports.Util._getProjectionToSegment(p1.x, p1.y, p2.x, p2.y, pt.x, pt.y);\n var px = proj[0], py = proj[1], pdist = proj[2];\n if (pdist < dist) {\n pc.x = px;\n pc.y = py;\n dist = pdist;\n }\n });\n return pc;\n },\n _prepareArrayForTween(startArray, endArray, isClosed) {\n var n, start = [], end = [];\n if (startArray.length > endArray.length) {\n var temp = endArray;\n endArray = startArray;\n startArray = temp;\n }\n for (n = 0; n < startArray.length; n += 2) {\n start.push({\n x: startArray[n],\n y: startArray[n + 1],\n });\n }\n for (n = 0; n < endArray.length; n += 2) {\n end.push({\n x: endArray[n],\n y: endArray[n + 1],\n });\n }\n var newStart = [];\n end.forEach(function (point) {\n var pr = exports.Util._getProjectionToLine(point, start, isClosed);\n newStart.push(pr.x);\n newStart.push(pr.y);\n });\n return newStart;\n },\n _prepareToStringify(obj) {\n var desc;\n obj.visitedByCircularReferenceRemoval = true;\n for (var key in obj) {\n if (!(obj.hasOwnProperty(key) && obj[key] && typeof obj[key] == 'object')) {\n continue;\n }\n desc = Object.getOwnPropertyDescriptor(obj, key);\n if (obj[key].visitedByCircularReferenceRemoval ||\n exports.Util._isElement(obj[key])) {\n if (desc.configurable) {\n delete obj[key];\n }\n else {\n return null;\n }\n }\n else if (exports.Util._prepareToStringify(obj[key]) === null) {\n if (desc.configurable) {\n delete obj[key];\n }\n else {\n return null;\n }\n }\n }\n delete obj.visitedByCircularReferenceRemoval;\n return obj;\n },\n _assign(target, source) {\n for (var key in source) {\n target[key] = source[key];\n }\n return target;\n },\n _getFirstPointerId(evt) {\n if (!evt.touches) {\n return evt.pointerId || 999;\n }\n else {\n return evt.changedTouches[0].identifier;\n }\n },\n releaseCanvas(...canvases) {\n if (!Global_1.Konva.releaseCanvasOnDestroy)\n return;\n canvases.forEach((c) => {\n c.width = 0;\n c.height = 0;\n });\n },\n drawRoundedRectPath(context, width, height, cornerRadius) {\n let topLeft = 0;\n let topRight = 0;\n let bottomLeft = 0;\n let bottomRight = 0;\n if (typeof cornerRadius === 'number') {\n topLeft =\n topRight =\n bottomLeft =\n bottomRight =\n Math.min(cornerRadius, width / 2, height / 2);\n }\n else {\n topLeft = Math.min(cornerRadius[0] || 0, width / 2, height / 2);\n topRight = Math.min(cornerRadius[1] || 0, width / 2, height / 2);\n bottomRight = Math.min(cornerRadius[2] || 0, width / 2, height / 2);\n bottomLeft = Math.min(cornerRadius[3] || 0, width / 2, height / 2);\n }\n context.moveTo(topLeft, 0);\n context.lineTo(width - topRight, 0);\n context.arc(width - topRight, topRight, topRight, (Math.PI * 3) / 2, 0, false);\n context.lineTo(width, height - bottomRight);\n context.arc(width - bottomRight, height - bottomRight, bottomRight, 0, Math.PI / 2, false);\n context.lineTo(bottomLeft, height);\n context.arc(bottomLeft, height - bottomLeft, bottomLeft, Math.PI / 2, Math.PI, false);\n context.lineTo(0, topLeft);\n context.arc(topLeft, topLeft, topLeft, Math.PI, (Math.PI * 3) / 2, false);\n },\n};\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.getComponentValidator = exports.getBooleanValidator = exports.getNumberArrayValidator = exports.getFunctionValidator = exports.getStringOrGradientValidator = exports.getStringValidator = exports.getNumberOrAutoValidator = exports.getNumberOrArrayOfNumbersValidator = exports.getNumberValidator = exports.alphaComponent = exports.RGBComponent = void 0;\nconst Global_1 = require(\"./Global\");\nconst Util_1 = require(\"./Util\");\nfunction _formatValue(val) {\n if (Util_1.Util._isString(val)) {\n return '\"' + val + '\"';\n }\n if (Object.prototype.toString.call(val) === '[object Number]') {\n return val;\n }\n if (Util_1.Util._isBoolean(val)) {\n return val;\n }\n return Object.prototype.toString.call(val);\n}\nfunction RGBComponent(val) {\n if (val > 255) {\n return 255;\n }\n else if (val < 0) {\n return 0;\n }\n return Math.round(val);\n}\nexports.RGBComponent = RGBComponent;\nfunction alphaComponent(val) {\n if (val > 1) {\n return 1;\n }\n else if (val < 0.0001) {\n return 0.0001;\n }\n return val;\n}\nexports.alphaComponent = alphaComponent;\nfunction getNumberValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n if (!Util_1.Util._isNumber(val)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a number.');\n }\n return val;\n };\n }\n}\nexports.getNumberValidator = getNumberValidator;\nfunction getNumberOrArrayOfNumbersValidator(noOfElements) {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n let isNumber = Util_1.Util._isNumber(val);\n let isValidArray = Util_1.Util._isArray(val) && val.length == noOfElements;\n if (!isNumber && !isValidArray) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a number or Array(' +\n noOfElements +\n ')');\n }\n return val;\n };\n }\n}\nexports.getNumberOrArrayOfNumbersValidator = getNumberOrArrayOfNumbersValidator;\nfunction getNumberOrAutoValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n var isNumber = Util_1.Util._isNumber(val);\n var isAuto = val === 'auto';\n if (!(isNumber || isAuto)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a number or \"auto\".');\n }\n return val;\n };\n }\n}\nexports.getNumberOrAutoValidator = getNumberOrAutoValidator;\nfunction getStringValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n if (!Util_1.Util._isString(val)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a string.');\n }\n return val;\n };\n }\n}\nexports.getStringValidator = getStringValidator;\nfunction getStringOrGradientValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n const isString = Util_1.Util._isString(val);\n const isGradient = Object.prototype.toString.call(val) === '[object CanvasGradient]' ||\n (val && val.addColorStop);\n if (!(isString || isGradient)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a string or a native gradient.');\n }\n return val;\n };\n }\n}\nexports.getStringOrGradientValidator = getStringOrGradientValidator;\nfunction getFunctionValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n if (!Util_1.Util._isFunction(val)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a function.');\n }\n return val;\n };\n }\n}\nexports.getFunctionValidator = getFunctionValidator;\nfunction getNumberArrayValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n const TypedArray = Int8Array ? Object.getPrototypeOf(Int8Array) : null;\n if (TypedArray && val instanceof TypedArray) {\n return val;\n }\n if (!Util_1.Util._isArray(val)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a array of numbers.');\n }\n else {\n val.forEach(function (item) {\n if (!Util_1.Util._isNumber(item)) {\n Util_1.Util.warn('\"' +\n attr +\n '\" attribute has non numeric element ' +\n item +\n '. Make sure that all elements are numbers.');\n }\n });\n }\n return val;\n };\n }\n}\nexports.getNumberArrayValidator = getNumberArrayValidator;\nfunction getBooleanValidator() {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n var isBool = val === true || val === false;\n if (!isBool) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be a boolean.');\n }\n return val;\n };\n }\n}\nexports.getBooleanValidator = getBooleanValidator;\nfunction getComponentValidator(components) {\n if (Global_1.Konva.isUnminified) {\n return function (val, attr) {\n if (val === undefined || val === null) {\n return val;\n }\n if (!Util_1.Util.isObject(val)) {\n Util_1.Util.warn(_formatValue(val) +\n ' is a not valid value for \"' +\n attr +\n '\" attribute. The value should be an object with properties ' +\n components);\n }\n return val;\n };\n }\n}\nexports.getComponentValidator = getComponentValidator;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Konva = void 0;\nconst Global_1 = require(\"./Global\");\nconst Util_1 = require(\"./Util\");\nconst Node_1 = require(\"./Node\");\nconst Container_1 = require(\"./Container\");\nconst Stage_1 = require(\"./Stage\");\nconst Layer_1 = require(\"./Layer\");\nconst FastLayer_1 = require(\"./FastLayer\");\nconst Group_1 = require(\"./Group\");\nconst DragAndDrop_1 = require(\"./DragAndDrop\");\nconst Shape_1 = require(\"./Shape\");\nconst Animation_1 = require(\"./Animation\");\nconst Tween_1 = require(\"./Tween\");\nconst Context_1 = require(\"./Context\");\nconst Canvas_1 = require(\"./Canvas\");\nexports.Konva = Util_1.Util._assign(Global_1.Konva, {\n Util: Util_1.Util,\n Transform: Util_1.Transform,\n Node: Node_1.Node,\n Container: Container_1.Container,\n Stage: Stage_1.Stage,\n stages: Stage_1.stages,\n Layer: Layer_1.Layer,\n FastLayer: FastLayer_1.FastLayer,\n Group: Group_1.Group,\n DD: DragAndDrop_1.DD,\n Shape: Shape_1.Shape,\n shapes: Shape_1.shapes,\n Animation: Animation_1.Animation,\n Tween: Tween_1.Tween,\n Easings: Tween_1.Easings,\n Context: Context_1.Context,\n Canvas: Canvas_1.Canvas,\n});\nexports.default = exports.Konva;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Line = void 0;\nconst Factory_1 = require(\"../Factory\");\nconst Shape_1 = require(\"../Shape\");\nconst Validators_1 = require(\"../Validators\");\nconst Global_1 = require(\"../Global\");\nfunction getControlPoints(x0, y0, x1, y1, x2, y2, t) {\n var d01 = Math.sqrt(Math.pow(x1 - x0, 2) + Math.pow(y1 - y0, 2)), d12 = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2)), fa = (t * d01) / (d01 + d12), fb = (t * d12) / (d01 + d12), p1x = x1 - fa * (x2 - x0), p1y = y1 - fa * (y2 - y0), p2x = x1 + fb * (x2 - x0), p2y = y1 + fb * (y2 - y0);\n return [p1x, p1y, p2x, p2y];\n}\nfunction expandPoints(p, tension) {\n var len = p.length, allPoints = [], n, cp;\n for (n = 2; n < len - 2; n += 2) {\n cp = getControlPoints(p[n - 2], p[n - 1], p[n], p[n + 1], p[n + 2], p[n + 3], tension);\n if (isNaN(cp[0])) {\n continue;\n }\n allPoints.push(cp[0]);\n allPoints.push(cp[1]);\n allPoints.push(p[n]);\n allPoints.push(p[n + 1]);\n allPoints.push(cp[2]);\n allPoints.push(cp[3]);\n }\n return allPoints;\n}\nclass Line extends Shape_1.Shape {\n constructor(config) {\n super(config);\n this.on('pointsChange.konva tensionChange.konva closedChange.konva bezierChange.konva', function () {\n this._clearCache('tensionPoints');\n });\n }\n _sceneFunc(context) {\n var points = this.points(), length = points.length, tension = this.tension(), closed = this.closed(), bezier = this.bezier(), tp, len, n;\n if (!length) {\n return;\n }\n context.beginPath();\n context.moveTo(points[0], points[1]);\n if (tension !== 0 && length > 4) {\n tp = this.getTensionPoints();\n len = tp.length;\n n = closed ? 0 : 4;\n if (!closed) {\n context.quadraticCurveTo(tp[0], tp[1], tp[2], tp[3]);\n }\n while (n < len - 2) {\n context.bezierCurveTo(tp[n++], tp[n++], tp[n++], tp[n++], tp[n++], tp[n++]);\n }\n if (!closed) {\n context.quadraticCurveTo(tp[len - 2], tp[len - 1], points[length - 2], points[length - 1]);\n }\n }\n else if (bezier) {\n n = 2;\n while (n < length) {\n context.bezierCurveTo(points[n++], points[n++], points[n++], points[n++], points[n++], points[n++]);\n }\n }\n else {\n for (n = 2; n < length; n += 2) {\n context.lineTo(points[n], points[n + 1]);\n }\n }\n if (closed) {\n context.closePath();\n context.fillStrokeShape(this);\n }\n else {\n context.strokeShape(this);\n }\n }\n getTensionPoints() {\n return this._getCache('tensionPoints', this._getTensionPoints);\n }\n _getTensionPoints() {\n if (this.closed()) {\n return this._getTensionPointsClosed();\n }\n else {\n return expandPoints(this.points(), this.tension());\n }\n }\n _getTensionPointsClosed() {\n var p = this.points(), len = p.length, tension = this.tension(), firstControlPoints = getControlPoints(p[len - 2], p[len - 1], p[0], p[1], p[2], p[3], tension), lastControlPoints = getControlPoints(p[len - 4], p[len - 3], p[len - 2], p[len - 1], p[0], p[1], tension), middle = expandPoints(p, tension), tp = [firstControlPoints[2], firstControlPoints[3]]\n .concat(middle)\n .concat([\n lastControlPoints[0],\n lastControlPoints[1],\n p[len - 2],\n p[len - 1],\n lastControlPoints[2],\n lastControlPoints[3],\n firstControlPoints[0],\n firstControlPoints[1],\n p[0],\n p[1],\n ]);\n return tp;\n }\n getWidth() {\n return this.getSelfRect().width;\n }\n getHeight() {\n return this.getSelfRect().height;\n }\n getSelfRect() {\n var points = this.points();\n if (points.length < 4) {\n return {\n x: points[0] || 0,\n y: points[1] || 0,\n width: 0,\n height: 0,\n };\n }\n if (this.tension() !== 0) {\n points = [\n points[0],\n points[1],\n ...this._getTensionPoints(),\n points[points.length - 2],\n points[points.length - 1],\n ];\n }\n else {\n points = this.points();\n }\n var minX = points[0];\n var maxX = points[0];\n var minY = points[1];\n var maxY = points[1];\n var x, y;\n for (var i = 0; i < points.length / 2; i++) {\n x = points[i * 2];\n y = points[i * 2 + 1];\n minX = Math.min(minX, x);\n maxX = Math.max(maxX, x);\n minY = Math.min(minY, y);\n maxY = Math.max(maxY, y);\n }\n return {\n x: minX,\n y: minY,\n width: maxX - minX,\n height: maxY - minY,\n };\n }\n}\nexports.Line = Line;\nLine.prototype.className = 'Line';\nLine.prototype._attrsAffectingSize = ['points', 'bezier', 'tension'];\n(0, Global_1._registerNode)(Line);\nFactory_1.Factory.addGetterSetter(Line, 'closed', false);\nFactory_1.Factory.addGetterSetter(Line, 'bezier', false);\nFactory_1.Factory.addGetterSetter(Line, 'tension', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Line, 'points', [], (0, Validators_1.getNumberArrayValidator)());\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Rect = void 0;\nconst Factory_1 = require(\"../Factory\");\nconst Shape_1 = require(\"../Shape\");\nconst Global_1 = require(\"../Global\");\nconst Util_1 = require(\"../Util\");\nconst Validators_1 = require(\"../Validators\");\nclass Rect extends Shape_1.Shape {\n _sceneFunc(context) {\n var cornerRadius = this.cornerRadius(), width = this.width(), height = this.height();\n context.beginPath();\n if (!cornerRadius) {\n context.rect(0, 0, width, height);\n }\n else {\n Util_1.Util.drawRoundedRectPath(context, width, height, cornerRadius);\n }\n context.closePath();\n context.fillStrokeShape(this);\n }\n}\nexports.Rect = Rect;\nRect.prototype.className = 'Rect';\n(0, Global_1._registerNode)(Rect);\nFactory_1.Factory.addGetterSetter(Rect, 'cornerRadius', 0, (0, Validators_1.getNumberOrArrayOfNumbersValidator)(4));\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.Text = exports.stringToArray = void 0;\nconst Util_1 = require(\"../Util\");\nconst Factory_1 = require(\"../Factory\");\nconst Shape_1 = require(\"../Shape\");\nconst Validators_1 = require(\"../Validators\");\nconst Global_1 = require(\"../Global\");\nfunction stringToArray(string) {\n return Array.from(string);\n}\nexports.stringToArray = stringToArray;\nvar AUTO = 'auto', CENTER = 'center', INHERIT = 'inherit', JUSTIFY = 'justify', CHANGE_KONVA = 'Change.konva', CONTEXT_2D = '2d', DASH = '-', LEFT = 'left', LTR = 'ltr', TEXT = 'text', TEXT_UPPER = 'Text', TOP = 'top', BOTTOM = 'bottom', MIDDLE = 'middle', NORMAL = 'normal', PX_SPACE = 'px ', SPACE = ' ', RIGHT = 'right', RTL = 'rtl', WORD = 'word', CHAR = 'char', NONE = 'none', ELLIPSIS = '…', ATTR_CHANGE_LIST = [\n 'direction',\n 'fontFamily',\n 'fontSize',\n 'fontStyle',\n 'fontVariant',\n 'padding',\n 'align',\n 'verticalAlign',\n 'lineHeight',\n 'text',\n 'width',\n 'height',\n 'wrap',\n 'ellipsis',\n 'letterSpacing',\n], attrChangeListLen = ATTR_CHANGE_LIST.length;\nfunction normalizeFontFamily(fontFamily) {\n return fontFamily\n .split(',')\n .map((family) => {\n family = family.trim();\n const hasSpace = family.indexOf(' ') >= 0;\n const hasQuotes = family.indexOf('\"') >= 0 || family.indexOf(\"'\") >= 0;\n if (hasSpace && !hasQuotes) {\n family = `\"${family}\"`;\n }\n return family;\n })\n .join(', ');\n}\nvar dummyContext;\nfunction getDummyContext() {\n if (dummyContext) {\n return dummyContext;\n }\n dummyContext = Util_1.Util.createCanvasElement().getContext(CONTEXT_2D);\n return dummyContext;\n}\nfunction _fillFunc(context) {\n context.fillText(this._partialText, this._partialTextX, this._partialTextY);\n}\nfunction _strokeFunc(context) {\n context.setAttr('miterLimit', 2);\n context.strokeText(this._partialText, this._partialTextX, this._partialTextY);\n}\nfunction checkDefaultFill(config) {\n config = config || {};\n if (!config.fillLinearGradientColorStops &&\n !config.fillRadialGradientColorStops &&\n !config.fillPatternImage) {\n config.fill = config.fill || 'black';\n }\n return config;\n}\nclass Text extends Shape_1.Shape {\n constructor(config) {\n super(checkDefaultFill(config));\n this._partialTextX = 0;\n this._partialTextY = 0;\n for (var n = 0; n < attrChangeListLen; n++) {\n this.on(ATTR_CHANGE_LIST[n] + CHANGE_KONVA, this._setTextData);\n }\n this._setTextData();\n }\n _sceneFunc(context) {\n var textArr = this.textArr, textArrLen = textArr.length;\n if (!this.text()) {\n return;\n }\n var padding = this.padding(), fontSize = this.fontSize(), lineHeightPx = this.lineHeight() * fontSize, verticalAlign = this.verticalAlign(), direction = this.direction(), alignY = 0, align = this.align(), totalWidth = this.getWidth(), letterSpacing = this.letterSpacing(), fill = this.fill(), textDecoration = this.textDecoration(), shouldUnderline = textDecoration.indexOf('underline') !== -1, shouldLineThrough = textDecoration.indexOf('line-through') !== -1, n;\n direction = direction === INHERIT ? context.direction : direction;\n var translateY = 0;\n var translateY = lineHeightPx / 2;\n var lineTranslateX = 0;\n var lineTranslateY = 0;\n if (direction === RTL) {\n context.setAttr('direction', direction);\n }\n context.setAttr('font', this._getContextFont());\n context.setAttr('textBaseline', MIDDLE);\n context.setAttr('textAlign', LEFT);\n if (verticalAlign === MIDDLE) {\n alignY = (this.getHeight() - textArrLen * lineHeightPx - padding * 2) / 2;\n }\n else if (verticalAlign === BOTTOM) {\n alignY = this.getHeight() - textArrLen * lineHeightPx - padding * 2;\n }\n context.translate(padding, alignY + padding);\n for (n = 0; n < textArrLen; n++) {\n var lineTranslateX = 0;\n var lineTranslateY = 0;\n var obj = textArr[n], text = obj.text, width = obj.width, lastLine = obj.lastInParagraph, spacesNumber, oneWord, lineWidth;\n context.save();\n if (align === RIGHT) {\n lineTranslateX += totalWidth - width - padding * 2;\n }\n else if (align === CENTER) {\n lineTranslateX += (totalWidth - width - padding * 2) / 2;\n }\n if (shouldUnderline) {\n context.save();\n context.beginPath();\n context.moveTo(lineTranslateX, translateY + lineTranslateY + Math.round(fontSize / 2));\n spacesNumber = text.split(' ').length - 1;\n oneWord = spacesNumber === 0;\n lineWidth =\n align === JUSTIFY && !lastLine ? totalWidth - padding * 2 : width;\n context.lineTo(lineTranslateX + Math.round(lineWidth), translateY + lineTranslateY + Math.round(fontSize / 2));\n context.lineWidth = fontSize / 15;\n const gradient = this._getLinearGradient();\n context.strokeStyle = gradient || fill;\n context.stroke();\n context.restore();\n }\n if (shouldLineThrough) {\n context.save();\n context.beginPath();\n context.moveTo(lineTranslateX, translateY + lineTranslateY);\n spacesNumber = text.split(' ').length - 1;\n oneWord = spacesNumber === 0;\n lineWidth =\n align === JUSTIFY && lastLine && !oneWord\n ? totalWidth - padding * 2\n : width;\n context.lineTo(lineTranslateX + Math.round(lineWidth), translateY + lineTranslateY);\n context.lineWidth = fontSize / 15;\n const gradient = this._getLinearGradient();\n context.strokeStyle = gradient || fill;\n context.stroke();\n context.restore();\n }\n if (direction !== RTL && (letterSpacing !== 0 || align === JUSTIFY)) {\n spacesNumber = text.split(' ').length - 1;\n var array = stringToArray(text);\n for (var li = 0; li < array.length; li++) {\n var letter = array[li];\n if (letter === ' ' && !lastLine && align === JUSTIFY) {\n lineTranslateX += (totalWidth - padding * 2 - width) / spacesNumber;\n }\n this._partialTextX = lineTranslateX;\n this._partialTextY = translateY + lineTranslateY;\n this._partialText = letter;\n context.fillStrokeShape(this);\n lineTranslateX += this.measureSize(letter).width + letterSpacing;\n }\n }\n else {\n if (letterSpacing !== 0) {\n context.setAttr('letterSpacing', `${letterSpacing}px`);\n }\n this._partialTextX = lineTranslateX;\n this._partialTextY = translateY + lineTranslateY;\n this._partialText = text;\n context.fillStrokeShape(this);\n }\n context.restore();\n if (textArrLen > 1) {\n translateY += lineHeightPx;\n }\n }\n }\n _hitFunc(context) {\n var width = this.getWidth(), height = this.getHeight();\n context.beginPath();\n context.rect(0, 0, width, height);\n context.closePath();\n context.fillStrokeShape(this);\n }\n setText(text) {\n var str = Util_1.Util._isString(text)\n ? text\n : text === null || text === undefined\n ? ''\n : text + '';\n this._setAttr(TEXT, str);\n return this;\n }\n getWidth() {\n var isAuto = this.attrs.width === AUTO || this.attrs.width === undefined;\n return isAuto ? this.getTextWidth() + this.padding() * 2 : this.attrs.width;\n }\n getHeight() {\n var isAuto = this.attrs.height === AUTO || this.attrs.height === undefined;\n return isAuto\n ? this.fontSize() * this.textArr.length * this.lineHeight() +\n this.padding() * 2\n : this.attrs.height;\n }\n getTextWidth() {\n return this.textWidth;\n }\n getTextHeight() {\n Util_1.Util.warn('text.getTextHeight() method is deprecated. Use text.height() - for full height and text.fontSize() - for one line height.');\n return this.textHeight;\n }\n measureSize(text) {\n var _context = getDummyContext(), fontSize = this.fontSize(), metrics;\n _context.save();\n _context.font = this._getContextFont();\n metrics = _context.measureText(text);\n _context.restore();\n return {\n width: metrics.width,\n height: fontSize,\n };\n }\n _getContextFont() {\n return (this.fontStyle() +\n SPACE +\n this.fontVariant() +\n SPACE +\n (this.fontSize() + PX_SPACE) +\n normalizeFontFamily(this.fontFamily()));\n }\n _addTextLine(line) {\n const align = this.align();\n if (align === JUSTIFY) {\n line = line.trim();\n }\n var width = this._getTextWidth(line);\n return this.textArr.push({\n text: line,\n width: width,\n lastInParagraph: false,\n });\n }\n _getTextWidth(text) {\n var letterSpacing = this.letterSpacing();\n var length = text.length;\n return (getDummyContext().measureText(text).width +\n (length ? letterSpacing * (length - 1) : 0));\n }\n _setTextData() {\n var lines = this.text().split('\\n'), fontSize = +this.fontSize(), textWidth = 0, lineHeightPx = this.lineHeight() * fontSize, width = this.attrs.width, height = this.attrs.height, fixedWidth = width !== AUTO && width !== undefined, fixedHeight = height !== AUTO && height !== undefined, padding = this.padding(), maxWidth = width - padding * 2, maxHeightPx = height - padding * 2, currentHeightPx = 0, wrap = this.wrap(), shouldWrap = wrap !== NONE, wrapAtWord = wrap !== CHAR && shouldWrap, shouldAddEllipsis = this.ellipsis();\n this.textArr = [];\n getDummyContext().font = this._getContextFont();\n var additionalWidth = shouldAddEllipsis ? this._getTextWidth(ELLIPSIS) : 0;\n for (var i = 0, max = lines.length; i < max; ++i) {\n var line = lines[i];\n var lineWidth = this._getTextWidth(line);\n if (fixedWidth && lineWidth > maxWidth) {\n while (line.length > 0) {\n var low = 0, high = line.length, match = '', matchWidth = 0;\n while (low < high) {\n var mid = (low + high) >>> 1, substr = line.slice(0, mid + 1), substrWidth = this._getTextWidth(substr) + additionalWidth;\n if (substrWidth <= maxWidth) {\n low = mid + 1;\n match = substr;\n matchWidth = substrWidth;\n }\n else {\n high = mid;\n }\n }\n if (match) {\n if (wrapAtWord) {\n var wrapIndex;\n var nextChar = line[match.length];\n var nextIsSpaceOrDash = nextChar === SPACE || nextChar === DASH;\n if (nextIsSpaceOrDash && matchWidth <= maxWidth) {\n wrapIndex = match.length;\n }\n else {\n wrapIndex =\n Math.max(match.lastIndexOf(SPACE), match.lastIndexOf(DASH)) +\n 1;\n }\n if (wrapIndex > 0) {\n low = wrapIndex;\n match = match.slice(0, low);\n matchWidth = this._getTextWidth(match);\n }\n }\n match = match.trimRight();\n this._addTextLine(match);\n textWidth = Math.max(textWidth, matchWidth);\n currentHeightPx += lineHeightPx;\n var shouldHandleEllipsis = this._shouldHandleEllipsis(currentHeightPx);\n if (shouldHandleEllipsis) {\n this._tryToAddEllipsisToLastLine();\n break;\n }\n line = line.slice(low);\n line = line.trimLeft();\n if (line.length > 0) {\n lineWidth = this._getTextWidth(line);\n if (lineWidth <= maxWidth) {\n this._addTextLine(line);\n currentHeightPx += lineHeightPx;\n textWidth = Math.max(textWidth, lineWidth);\n break;\n }\n }\n }\n else {\n break;\n }\n }\n }\n else {\n this._addTextLine(line);\n currentHeightPx += lineHeightPx;\n textWidth = Math.max(textWidth, lineWidth);\n if (this._shouldHandleEllipsis(currentHeightPx) && i < max - 1) {\n this._tryToAddEllipsisToLastLine();\n }\n }\n if (this.textArr[this.textArr.length - 1]) {\n this.textArr[this.textArr.length - 1].lastInParagraph = true;\n }\n if (fixedHeight && currentHeightPx + lineHeightPx > maxHeightPx) {\n break;\n }\n }\n this.textHeight = fontSize;\n this.textWidth = textWidth;\n }\n _shouldHandleEllipsis(currentHeightPx) {\n var fontSize = +this.fontSize(), lineHeightPx = this.lineHeight() * fontSize, height = this.attrs.height, fixedHeight = height !== AUTO && height !== undefined, padding = this.padding(), maxHeightPx = height - padding * 2, wrap = this.wrap(), shouldWrap = wrap !== NONE;\n return (!shouldWrap ||\n (fixedHeight && currentHeightPx + lineHeightPx > maxHeightPx));\n }\n _tryToAddEllipsisToLastLine() {\n var width = this.attrs.width, fixedWidth = width !== AUTO && width !== undefined, padding = this.padding(), maxWidth = width - padding * 2, shouldAddEllipsis = this.ellipsis();\n var lastLine = this.textArr[this.textArr.length - 1];\n if (!lastLine || !shouldAddEllipsis) {\n return;\n }\n if (fixedWidth) {\n var haveSpace = this._getTextWidth(lastLine.text + ELLIPSIS) < maxWidth;\n if (!haveSpace) {\n lastLine.text = lastLine.text.slice(0, lastLine.text.length - 3);\n }\n }\n this.textArr.splice(this.textArr.length - 1, 1);\n this._addTextLine(lastLine.text + ELLIPSIS);\n }\n getStrokeScaleEnabled() {\n return true;\n }\n _useBufferCanvas() {\n const hasLine = this.textDecoration().indexOf('underline') !== -1 ||\n this.textDecoration().indexOf('line-through') !== -1;\n const hasShadow = this.hasShadow();\n if (hasLine && hasShadow) {\n return true;\n }\n return super._useBufferCanvas();\n }\n}\nexports.Text = Text;\nText.prototype._fillFunc = _fillFunc;\nText.prototype._strokeFunc = _strokeFunc;\nText.prototype.className = TEXT_UPPER;\nText.prototype._attrsAffectingSize = [\n 'text',\n 'fontSize',\n 'padding',\n 'wrap',\n 'lineHeight',\n 'letterSpacing',\n];\n(0, Global_1._registerNode)(Text);\nFactory_1.Factory.overWriteSetter(Text, 'width', (0, Validators_1.getNumberOrAutoValidator)());\nFactory_1.Factory.overWriteSetter(Text, 'height', (0, Validators_1.getNumberOrAutoValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'direction', INHERIT);\nFactory_1.Factory.addGetterSetter(Text, 'fontFamily', 'Arial');\nFactory_1.Factory.addGetterSetter(Text, 'fontSize', 12, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'fontStyle', NORMAL);\nFactory_1.Factory.addGetterSetter(Text, 'fontVariant', NORMAL);\nFactory_1.Factory.addGetterSetter(Text, 'padding', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'align', LEFT);\nFactory_1.Factory.addGetterSetter(Text, 'verticalAlign', TOP);\nFactory_1.Factory.addGetterSetter(Text, 'lineHeight', 1, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'wrap', WORD);\nFactory_1.Factory.addGetterSetter(Text, 'ellipsis', false, (0, Validators_1.getBooleanValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'letterSpacing', 0, (0, Validators_1.getNumberValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'text', '', (0, Validators_1.getStringValidator)());\nFactory_1.Factory.addGetterSetter(Text, 'textDecoration', '');\n","/**\n * @license\n * Lodash \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %> ');\n * compiled({ 'value': '