@carbon/charts
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Carbon Charts component library
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{"version":3,"file":"index-DVamZWt0.mjs","sources":["../../../node_modules/lodash-es/flatten.js","../../../node_modules/lodash-es/_flatRest.js","../../../node_modules/lodash-es/_baseSlice.js","../../../node_modules/lodash-es/_parent.js","../../../node_modules/lodash-es/_baseUnset.js","../../../node_modules/lodash-es/_customOmitClone.js","../../../node_modules/lodash-es/omit.js","../../../node_modules/d3-scale/src/log.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/basis.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/basisClosed.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/basisOpen.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/bundle.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/cardinal.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/cardinalClosed.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/cardinalOpen.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/catmullRom.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/catmullRomClosed.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/catmullRomOpen.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/monotone.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/natural.js","../../../node_modules/d3/node_modules/d3-shape/src/curve/step.js","../src/services/canvas-zoom.ts","../src/services/essentials/events.ts","../src/services/essentials/files.ts","../src/services/essentials/transitions.ts","../../../node_modules/date-fns/compareAsc.js","../../../node_modules/date-fns/differenceInCalendarYears.js","../../../node_modules/date-fns/differenceInYears.js","../../../node_modules/date-fns/addMonths.js","../../../node_modules/date-fns/addYears.js","../../../node_modules/date-fns/subYears.js","../../../node_modules/date-fns/differenceInCalendarMonths.js","../../../node_modules/date-fns/endOfDay.js","../../../node_modules/date-fns/endOfMonth.js","../../../node_modules/date-fns/isLastDayOfMonth.js","../../../node_modules/date-fns/differenceInMonths.js","../../../node_modules/date-fns/subMonths.js","../../../node_modules/date-fns/differenceInDays.js","../../../node_modules/date-fns/addDays.js","../../../node_modules/date-fns/subDays.js","../../../node_modules/date-fns/_lib/getRoundingMethod.js","../../../node_modules/date-fns/differenceInHours.js","../../../node_modules/date-fns/addMilliseconds.js","../../../node_modules/date-fns/addHours.js","../../../node_modules/date-fns/subHours.js","../../../node_modules/date-fns/differenceInMilliseconds.js","../../../node_modules/date-fns/differenceInMinutes.js","../../../node_modules/date-fns/addMinutes.js","../../../node_modules/date-fns/subMinutes.js","../../../node_modules/date-fns/differenceInSeconds.js","../../../node_modules/date-fns/addSeconds.js","../../../node_modules/date-fns/subSeconds.js","../src/services/scales-cartesian.ts","../src/services/curves.ts","../src/services/zoom.ts"],"sourcesContent":["import baseFlatten from './_baseFlatten.js';\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 */\nfunction flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n}\n\nexport default flatten;\n","import flatten from './flatten.js';\nimport overRest from './_overRest.js';\nimport setToString from './_setToString.js';\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 */\nfunction flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n}\n\nexport default flatRest;\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 */\nfunction 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\nexport default baseSlice;\n","import baseGet from './_baseGet.js';\nimport baseSlice from './_baseSlice.js';\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 */\nfunction parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n}\n\nexport default parent;\n","import castPath from './_castPath.js';\nimport last from './last.js';\nimport parent from './_parent.js';\nimport toKey from './_toKey.js';\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\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 */\nfunction baseUnset(object, path) {\n path = castPath(path, object);\n\n // Prevent prototype pollution, see: https://github.com/lodash/lodash/security/advisories/GHSA-xxjr-mmjv-4gpg\n var index = -1,\n length = path.length;\n\n if (!length) {\n return true;\n }\n\n var isRootPrimitive = object == null || (typeof object !== 'object' && typeof object !== 'function');\n\n while (++index < length) {\n var key = path[index];\n\n // skip non-string keys (e.g., Symbols, numbers)\n if (typeof key !== 'string') {\n continue;\n }\n\n // Always block \"__proto__\" anywhere in the path if it's not expected\n if (key === '__proto__' && !hasOwnProperty.call(object, '__proto__')) {\n return false;\n }\n\n // Block \"constructor.prototype\" chains\n if (key === 'constructor' &&\n (index + 1) < length &&\n typeof path[index + 1] === 'string' &&\n path[index + 1] === 'prototype') {\n\n // Allow ONLY when the path starts at a primitive root, e.g., _.unset(0, 'constructor.prototype.a')\n if (isRootPrimitive && index === 0) {\n continue;\n }\n\n return false;\n }\n }\n\n var obj = parent(object, path);\n return obj == null || delete obj[toKey(last(path))];\n}\n\nexport default baseUnset;\n","import isPlainObject from './isPlainObject.js';\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 */\nfunction customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n}\n\nexport default customOmitClone;\n","import arrayMap from './_arrayMap.js';\nimport baseClone from './_baseClone.js';\nimport baseUnset from './_baseUnset.js';\nimport castPath from './_castPath.js';\nimport copyObject from './_copyObject.js';\nimport customOmitClone from './_customOmitClone.js';\nimport flatRest from './_flatRest.js';\nimport getAllKeysIn from './_getAllKeysIn.js';\n\n/** Used to compose bitmasks for cloning. */\nvar CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\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 */\nvar 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\nexport default omit;\n","import {ticks} from \"d3-array\";\nimport {format, formatSpecifier} from \"d3-format\";\nimport nice from \"./nice.js\";\nimport {copy, transformer} from \"./continuous.js\";\nimport {initRange} from \"./init.js\";\n\nfunction transformLog(x) {\n return Math.log(x);\n}\n\nfunction transformExp(x) {\n return Math.exp(x);\n}\n\nfunction transformLogn(x) {\n return -Math.log(-x);\n}\n\nfunction transformExpn(x) {\n return -Math.exp(-x);\n}\n\nfunction pow10(x) {\n return isFinite(x) ? +(\"1e\" + x) : x < 0 ? 0 : x;\n}\n\nfunction powp(base) {\n return base === 10 ? pow10\n : base === Math.E ? Math.exp\n : x => Math.pow(base, x);\n}\n\nfunction logp(base) {\n return base === Math.E ? Math.log\n : base === 10 && Math.log10\n || base === 2 && Math.log2\n || (base = Math.log(base), x => Math.log(x) / base);\n}\n\nfunction reflect(f) {\n return (x, k) => -f(-x, k);\n}\n\nexport function loggish(transform) {\n const scale = transform(transformLog, transformExp);\n const domain = scale.domain;\n let base = 10;\n let logs;\n let pows;\n\n function rescale() {\n logs = logp(base), pows = powp(base);\n if (domain()[0] < 0) {\n logs = reflect(logs), pows = reflect(pows);\n transform(transformLogn, transformExpn);\n } else {\n transform(transformLog, transformExp);\n }\n return scale;\n }\n\n scale.base = function(_) {\n return arguments.length ? (base = +_, rescale()) : base;\n };\n\n scale.domain = function(_) {\n return arguments.length ? (domain(_), rescale()) : domain();\n };\n\n scale.ticks = count => {\n const d = domain();\n let u = d[0];\n let v = d[d.length - 1];\n const r = v < u;\n\n if (r) ([u, v] = [v, u]);\n\n let i = logs(u);\n let j = logs(v);\n let k;\n let t;\n const n = count == null ? 10 : +count;\n let z = [];\n\n if (!(base % 1) && j - i < n) {\n i = Math.floor(i), j = Math.ceil(j);\n if (u > 0) for (; i <= j; ++i) {\n for (k = 1; k < base; ++k) {\n t = i < 0 ? k / pows(-i) : k * pows(i);\n if (t < u) continue;\n if (t > v) break;\n z.push(t);\n }\n } else for (; i <= j; ++i) {\n for (k = base - 1; k >= 1; --k) {\n t = i > 0 ? k / pows(-i) : k * pows(i);\n if (t < u) continue;\n if (t > v) break;\n z.push(t);\n }\n }\n if (z.length * 2 < n) z = ticks(u, v, n);\n } else {\n z = ticks(i, j, Math.min(j - i, n)).map(pows);\n }\n return r ? z.reverse() : z;\n };\n\n scale.tickFormat = (count, specifier) => {\n if (count == null) count = 10;\n if (specifier == null) specifier = base === 10 ? \"s\" : \",\";\n if (typeof specifier !== \"function\") {\n if (!(base % 1) && (specifier = formatSpecifier(specifier)).precision == null) specifier.trim = true;\n specifier = format(specifier);\n }\n if (count === Infinity) return specifier;\n const k = Math.max(1, base * count / scale.ticks().length); // TODO fast estimate?\n return d => {\n let i = d / pows(Math.round(logs(d)));\n if (i * base < base - 0.5) i *= base;\n return i <= k ? specifier(d) : \"\";\n };\n };\n\n scale.nice = () => {\n return domain(nice(domain(), {\n floor: x => pows(Math.floor(logs(x))),\n ceil: x => pows(Math.ceil(logs(x)))\n }));\n };\n\n return scale;\n}\n\nexport default function log() {\n const scale = loggish(transformer()).domain([1, 10]);\n scale.copy = () => copy(scale, log()).base(scale.base());\n initRange.apply(scale, arguments);\n return scale;\n}\n","export function point(that, x, y) {\n that._context.bezierCurveTo(\n (2 * that._x0 + that._x1) / 3,\n (2 * that._y0 + that._y1) / 3,\n (that._x0 + 2 * that._x1) / 3,\n (that._y0 + 2 * that._y1) / 3,\n (that._x0 + 4 * that._x1 + x) / 6,\n (that._y0 + 4 * that._y1 + y) / 6\n );\n}\n\nexport function Basis(context) {\n this._context = context;\n}\n\nBasis.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 =\n this._y0 = this._y1 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 3: point(this, this._x1, this._y1); // falls through\n case 2: this._context.lineTo(this._x1, this._y1); break;\n }\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; this._context.lineTo((5 * this._x0 + this._x1) / 6, (5 * this._y0 + this._y1) / 6); // falls through\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = x;\n this._y0 = this._y1, this._y1 = y;\n }\n};\n\nexport default function(context) {\n return new Basis(context);\n}\n","import noop from \"../noop.js\";\nimport {point} from \"./basis.js\";\n\nfunction BasisClosed(context) {\n this._context = context;\n}\n\nBasisClosed.prototype = {\n areaStart: noop,\n areaEnd: noop,\n lineStart: function() {\n this._x0 = this._x1 = this._x2 = this._x3 = this._x4 =\n this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 1: {\n this._context.moveTo(this._x2, this._y2);\n this._context.closePath();\n break;\n }\n case 2: {\n this._context.moveTo((this._x2 + 2 * this._x3) / 3, (this._y2 + 2 * this._y3) / 3);\n this._context.lineTo((this._x3 + 2 * this._x2) / 3, (this._y3 + 2 * this._y2) / 3);\n this._context.closePath();\n break;\n }\n case 3: {\n this.point(this._x2, this._y2);\n this.point(this._x3, this._y3);\n this.point(this._x4, this._y4);\n break;\n }\n }\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._x2 = x, this._y2 = y; break;\n case 1: this._point = 2; this._x3 = x, this._y3 = y; break;\n case 2: this._point = 3; this._x4 = x, this._y4 = y; this._context.moveTo((this._x0 + 4 * this._x1 + x) / 6, (this._y0 + 4 * this._y1 + y) / 6); break;\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = x;\n this._y0 = this._y1, this._y1 = y;\n }\n};\n\nexport default function(context) {\n return new BasisClosed(context);\n}\n","import {point} from \"./basis.js\";\n\nfunction BasisOpen(context) {\n this._context = context;\n}\n\nBasisOpen.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 =\n this._y0 = this._y1 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; var x0 = (this._x0 + 4 * this._x1 + x) / 6, y0 = (this._y0 + 4 * this._y1 + y) / 6; this._line ? this._context.lineTo(x0, y0) : this._context.moveTo(x0, y0); break;\n case 3: this._point = 4; // falls through\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = x;\n this._y0 = this._y1, this._y1 = y;\n }\n};\n\nexport default function(context) {\n return new BasisOpen(context);\n}\n","import {Basis} from \"./basis.js\";\n\nfunction Bundle(context, beta) {\n this._basis = new Basis(context);\n this._beta = beta;\n}\n\nBundle.prototype = {\n lineStart: function() {\n this._x = [];\n this._y = [];\n this._basis.lineStart();\n },\n lineEnd: function() {\n var x = this._x,\n y = this._y,\n j = x.length - 1;\n\n if (j > 0) {\n var x0 = x[0],\n y0 = y[0],\n dx = x[j] - x0,\n dy = y[j] - y0,\n i = -1,\n t;\n\n while (++i <= j) {\n t = i / j;\n this._basis.point(\n this._beta * x[i] + (1 - this._beta) * (x0 + t * dx),\n this._beta * y[i] + (1 - this._beta) * (y0 + t * dy)\n );\n }\n }\n\n this._x = this._y = null;\n this._basis.lineEnd();\n },\n point: function(x, y) {\n this._x.push(+x);\n this._y.push(+y);\n }\n};\n\nexport default (function custom(beta) {\n\n function bundle(context) {\n return beta === 1 ? new Basis(context) : new Bundle(context, beta);\n }\n\n bundle.beta = function(beta) {\n return custom(+beta);\n };\n\n return bundle;\n})(0.85);\n","export function point(that, x, y) {\n that._context.bezierCurveTo(\n that._x1 + that._k * (that._x2 - that._x0),\n that._y1 + that._k * (that._y2 - that._y0),\n that._x2 + that._k * (that._x1 - x),\n that._y2 + that._k * (that._y1 - y),\n that._x2,\n that._y2\n );\n}\n\nexport function Cardinal(context, tension) {\n this._context = context;\n this._k = (1 - tension) / 6;\n}\n\nCardinal.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 = this._x2 =\n this._y0 = this._y1 = this._y2 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 2: this._context.lineTo(this._x2, this._y2); break;\n case 3: point(this, this._x1, this._y1); break;\n }\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; this._x1 = x, this._y1 = y; break;\n case 2: this._point = 3; // falls through\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(tension) {\n\n function cardinal(context) {\n return new Cardinal(context, tension);\n }\n\n cardinal.tension = function(tension) {\n return custom(+tension);\n };\n\n return cardinal;\n})(0);\n","import noop from \"../noop.js\";\nimport {point} from \"./cardinal.js\";\n\nexport function CardinalClosed(context, tension) {\n this._context = context;\n this._k = (1 - tension) / 6;\n}\n\nCardinalClosed.prototype = {\n areaStart: noop,\n areaEnd: noop,\n lineStart: function() {\n this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =\n this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 1: {\n this._context.moveTo(this._x3, this._y3);\n this._context.closePath();\n break;\n }\n case 2: {\n this._context.lineTo(this._x3, this._y3);\n this._context.closePath();\n break;\n }\n case 3: {\n this.point(this._x3, this._y3);\n this.point(this._x4, this._y4);\n this.point(this._x5, this._y5);\n break;\n }\n }\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._x3 = x, this._y3 = y; break;\n case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;\n case 2: this._point = 3; this._x5 = x, this._y5 = y; break;\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(tension) {\n\n function cardinal(context) {\n return new CardinalClosed(context, tension);\n }\n\n cardinal.tension = function(tension) {\n return custom(+tension);\n };\n\n return cardinal;\n})(0);\n","import {point} from \"./cardinal.js\";\n\nexport function CardinalOpen(context, tension) {\n this._context = context;\n this._k = (1 - tension) / 6;\n}\n\nCardinalOpen.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 = this._x2 =\n this._y0 = this._y1 = this._y2 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;\n case 3: this._point = 4; // falls through\n default: point(this, x, y); break;\n }\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(tension) {\n\n function cardinal(context) {\n return new CardinalOpen(context, tension);\n }\n\n cardinal.tension = function(tension) {\n return custom(+tension);\n };\n\n return cardinal;\n})(0);\n","import {epsilon} from \"../math.js\";\nimport {Cardinal} from \"./cardinal.js\";\n\nexport function point(that, x, y) {\n var x1 = that._x1,\n y1 = that._y1,\n x2 = that._x2,\n y2 = that._y2;\n\n if (that._l01_a > epsilon) {\n var a = 2 * that._l01_2a + 3 * that._l01_a * that._l12_a + that._l12_2a,\n n = 3 * that._l01_a * (that._l01_a + that._l12_a);\n x1 = (x1 * a - that._x0 * that._l12_2a + that._x2 * that._l01_2a) / n;\n y1 = (y1 * a - that._y0 * that._l12_2a + that._y2 * that._l01_2a) / n;\n }\n\n if (that._l23_a > epsilon) {\n var b = 2 * that._l23_2a + 3 * that._l23_a * that._l12_a + that._l12_2a,\n m = 3 * that._l23_a * (that._l23_a + that._l12_a);\n x2 = (x2 * b + that._x1 * that._l23_2a - x * that._l12_2a) / m;\n y2 = (y2 * b + that._y1 * that._l23_2a - y * that._l12_2a) / m;\n }\n\n that._context.bezierCurveTo(x1, y1, x2, y2, that._x2, that._y2);\n}\n\nfunction CatmullRom(context, alpha) {\n this._context = context;\n this._alpha = alpha;\n}\n\nCatmullRom.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 = this._x2 =\n this._y0 = this._y1 = this._y2 = NaN;\n this._l01_a = this._l12_a = this._l23_a =\n this._l01_2a = this._l12_2a = this._l23_2a =\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 2: this._context.lineTo(this._x2, this._y2); break;\n case 3: this.point(this._x2, this._y2); break;\n }\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n\n if (this._point) {\n var x23 = this._x2 - x,\n y23 = this._y2 - y;\n this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));\n }\n\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; // falls through\n default: point(this, x, y); break;\n }\n\n this._l01_a = this._l12_a, this._l12_a = this._l23_a;\n this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(alpha) {\n\n function catmullRom(context) {\n return alpha ? new CatmullRom(context, alpha) : new Cardinal(context, 0);\n }\n\n catmullRom.alpha = function(alpha) {\n return custom(+alpha);\n };\n\n return catmullRom;\n})(0.5);\n","import {CardinalClosed} from \"./cardinalClosed.js\";\nimport noop from \"../noop.js\";\nimport {point} from \"./catmullRom.js\";\n\nfunction CatmullRomClosed(context, alpha) {\n this._context = context;\n this._alpha = alpha;\n}\n\nCatmullRomClosed.prototype = {\n areaStart: noop,\n areaEnd: noop,\n lineStart: function() {\n this._x0 = this._x1 = this._x2 = this._x3 = this._x4 = this._x5 =\n this._y0 = this._y1 = this._y2 = this._y3 = this._y4 = this._y5 = NaN;\n this._l01_a = this._l12_a = this._l23_a =\n this._l01_2a = this._l12_2a = this._l23_2a =\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 1: {\n this._context.moveTo(this._x3, this._y3);\n this._context.closePath();\n break;\n }\n case 2: {\n this._context.lineTo(this._x3, this._y3);\n this._context.closePath();\n break;\n }\n case 3: {\n this.point(this._x3, this._y3);\n this.point(this._x4, this._y4);\n this.point(this._x5, this._y5);\n break;\n }\n }\n },\n point: function(x, y) {\n x = +x, y = +y;\n\n if (this._point) {\n var x23 = this._x2 - x,\n y23 = this._y2 - y;\n this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));\n }\n\n switch (this._point) {\n case 0: this._point = 1; this._x3 = x, this._y3 = y; break;\n case 1: this._point = 2; this._context.moveTo(this._x4 = x, this._y4 = y); break;\n case 2: this._point = 3; this._x5 = x, this._y5 = y; break;\n default: point(this, x, y); break;\n }\n\n this._l01_a = this._l12_a, this._l12_a = this._l23_a;\n this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(alpha) {\n\n function catmullRom(context) {\n return alpha ? new CatmullRomClosed(context, alpha) : new CardinalClosed(context, 0);\n }\n\n catmullRom.alpha = function(alpha) {\n return custom(+alpha);\n };\n\n return catmullRom;\n})(0.5);\n","import {CardinalOpen} from \"./cardinalOpen.js\";\nimport {point} from \"./catmullRom.js\";\n\nfunction CatmullRomOpen(context, alpha) {\n this._context = context;\n this._alpha = alpha;\n}\n\nCatmullRomOpen.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 = this._x2 =\n this._y0 = this._y1 = this._y2 = NaN;\n this._l01_a = this._l12_a = this._l23_a =\n this._l01_2a = this._l12_2a = this._l23_2a =\n this._point = 0;\n },\n lineEnd: function() {\n if (this._line || (this._line !== 0 && this._point === 3)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n\n if (this._point) {\n var x23 = this._x2 - x,\n y23 = this._y2 - y;\n this._l23_a = Math.sqrt(this._l23_2a = Math.pow(x23 * x23 + y23 * y23, this._alpha));\n }\n\n switch (this._point) {\n case 0: this._point = 1; break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; this._line ? this._context.lineTo(this._x2, this._y2) : this._context.moveTo(this._x2, this._y2); break;\n case 3: this._point = 4; // falls through\n default: point(this, x, y); break;\n }\n\n this._l01_a = this._l12_a, this._l12_a = this._l23_a;\n this._l01_2a = this._l12_2a, this._l12_2a = this._l23_2a;\n this._x0 = this._x1, this._x1 = this._x2, this._x2 = x;\n this._y0 = this._y1, this._y1 = this._y2, this._y2 = y;\n }\n};\n\nexport default (function custom(alpha) {\n\n function catmullRom(context) {\n return alpha ? new CatmullRomOpen(context, alpha) : new CardinalOpen(context, 0);\n }\n\n catmullRom.alpha = function(alpha) {\n return custom(+alpha);\n };\n\n return catmullRom;\n})(0.5);\n","function sign(x) {\n return x < 0 ? -1 : 1;\n}\n\n// Calculate the slopes of the tangents (Hermite-type interpolation) based on\n// the following paper: Steffen, M. 1990. A Simple Method for Monotonic\n// Interpolation in One Dimension. Astronomy and Astrophysics, Vol. 239, NO.\n// NOV(II), P. 443, 1990.\nfunction slope3(that, x2, y2) {\n var h0 = that._x1 - that._x0,\n h1 = x2 - that._x1,\n s0 = (that._y1 - that._y0) / (h0 || h1 < 0 && -0),\n s1 = (y2 - that._y1) / (h1 || h0 < 0 && -0),\n p = (s0 * h1 + s1 * h0) / (h0 + h1);\n return (sign(s0) + sign(s1)) * Math.min(Math.abs(s0), Math.abs(s1), 0.5 * Math.abs(p)) || 0;\n}\n\n// Calculate a one-sided slope.\nfunction slope2(that, t) {\n var h = that._x1 - that._x0;\n return h ? (3 * (that._y1 - that._y0) / h - t) / 2 : t;\n}\n\n// According to https://en.wikipedia.org/wiki/Cubic_Hermite_spline#Representations\n// \"you can express cubic Hermite interpolation in terms of cubic Bézier curves\n// with respect to the four values p0, p0 + m0 / 3, p1 - m1 / 3, p1\".\nfunction point(that, t0, t1) {\n var x0 = that._x0,\n y0 = that._y0,\n x1 = that._x1,\n y1 = that._y1,\n dx = (x1 - x0) / 3;\n that._context.bezierCurveTo(x0 + dx, y0 + dx * t0, x1 - dx, y1 - dx * t1, x1, y1);\n}\n\nfunction MonotoneX(context) {\n this._context = context;\n}\n\nMonotoneX.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x0 = this._x1 =\n this._y0 = this._y1 =\n this._t0 = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n switch (this._point) {\n case 2: this._context.lineTo(this._x1, this._y1); break;\n case 3: point(this, this._t0, slope2(this, this._t0)); break;\n }\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n this._line = 1 - this._line;\n },\n point: function(x, y) {\n var t1 = NaN;\n\n x = +x, y = +y;\n if (x === this._x1 && y === this._y1) return; // Ignore coincident points.\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; break;\n case 2: this._point = 3; point(this, slope2(this, t1 = slope3(this, x, y)), t1); break;\n default: point(this, this._t0, t1 = slope3(this, x, y)); break;\n }\n\n this._x0 = this._x1, this._x1 = x;\n this._y0 = this._y1, this._y1 = y;\n this._t0 = t1;\n }\n}\n\nfunction MonotoneY(context) {\n this._context = new ReflectContext(context);\n}\n\n(MonotoneY.prototype = Object.create(MonotoneX.prototype)).point = function(x, y) {\n MonotoneX.prototype.point.call(this, y, x);\n};\n\nfunction ReflectContext(context) {\n this._context = context;\n}\n\nReflectContext.prototype = {\n moveTo: function(x, y) { this._context.moveTo(y, x); },\n closePath: function() { this._context.closePath(); },\n lineTo: function(x, y) { this._context.lineTo(y, x); },\n bezierCurveTo: function(x1, y1, x2, y2, x, y) { this._context.bezierCurveTo(y1, x1, y2, x2, y, x); }\n};\n\nexport function monotoneX(context) {\n return new MonotoneX(context);\n}\n\nexport function monotoneY(context) {\n return new MonotoneY(context);\n}\n","function Natural(context) {\n this._context = context;\n}\n\nNatural.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x = [];\n this._y = [];\n },\n lineEnd: function() {\n var x = this._x,\n y = this._y,\n n = x.length;\n\n if (n) {\n this._line ? this._context.lineTo(x[0], y[0]) : this._context.moveTo(x[0], y[0]);\n if (n === 2) {\n this._context.lineTo(x[1], y[1]);\n } else {\n var px = controlPoints(x),\n py = controlPoints(y);\n for (var i0 = 0, i1 = 1; i1 < n; ++i0, ++i1) {\n this._context.bezierCurveTo(px[0][i0], py[0][i0], px[1][i0], py[1][i0], x[i1], y[i1]);\n }\n }\n }\n\n if (this._line || (this._line !== 0 && n === 1)) this._context.closePath();\n this._line = 1 - this._line;\n this._x = this._y = null;\n },\n point: function(x, y) {\n this._x.push(+x);\n this._y.push(+y);\n }\n};\n\n// See https://www.particleincell.com/2012/bezier-splines/ for derivation.\nfunction controlPoints(x) {\n var i,\n n = x.length - 1,\n m,\n a = new Array(n),\n b = new Array(n),\n r = new Array(n);\n a[0] = 0, b[0] = 2, r[0] = x[0] + 2 * x[1];\n for (i = 1; i < n - 1; ++i) a[i] = 1, b[i] = 4, r[i] = 4 * x[i] + 2 * x[i + 1];\n a[n - 1] = 2, b[n - 1] = 7, r[n - 1] = 8 * x[n - 1] + x[n];\n for (i = 1; i < n; ++i) m = a[i] / b[i - 1], b[i] -= m, r[i] -= m * r[i - 1];\n a[n - 1] = r[n - 1] / b[n - 1];\n for (i = n - 2; i >= 0; --i) a[i] = (r[i] - a[i + 1]) / b[i];\n b[n - 1] = (x[n] + a[n - 1]) / 2;\n for (i = 0; i < n - 1; ++i) b[i] = 2 * x[i + 1] - a[i + 1];\n return [a, b];\n}\n\nexport default function(context) {\n return new Natural(context);\n}\n","function Step(context, t) {\n this._context = context;\n this._t = t;\n}\n\nStep.prototype = {\n areaStart: function() {\n this._line = 0;\n },\n areaEnd: function() {\n this._line = NaN;\n },\n lineStart: function() {\n this._x = this._y = NaN;\n this._point = 0;\n },\n lineEnd: function() {\n if (0 < this._t && this._t < 1 && this._point === 2) this._context.lineTo(this._x, this._y);\n if (this._line || (this._line !== 0 && this._point === 1)) this._context.closePath();\n if (this._line >= 0) this._t = 1 - this._t, this._line = 1 - this._line;\n },\n point: function(x, y) {\n x = +x, y = +y;\n switch (this._point) {\n case 0: this._point = 1; this._line ? this._context.lineTo(x, y) : this._context.moveTo(x, y); break;\n case 1: this._point = 2; // falls through\n default: {\n if (this._t <= 0) {\n this._context.lineTo(this._x, y);\n this._context.lineTo(x, y);\n } else {\n var x1 = this._x * (1 - this._t) + x * this._t;\n this._context.lineTo(x1, this._y);\n this._context.lineTo(x1, y);\n }\n break;\n }\n }\n this._x = x, this._y = y;\n }\n};\n\nexport default function(context) {\n return new Step(context, 0.5);\n}\n\nexport function stepBefore(context) {\n return new Step(context, 0);\n}\n\nexport function stepAfter(context) {\n return new Step(context, 1);\n}\n","import { select } from 'd3'\nimport { Service } from './service'\nimport { Events } from '@/interfaces/enums'\nimport { canvasZoomSettings } from '@/configuration'\nimport { DOMUtils } from '@/services/essentials/dom-utils'\n\nexport class CanvasZoom extends Service {\n\tprotected model: any\n\n\t/**\n\t * focal: object to zoom into\n\t * canvasElements: all the elements to translate and zoom on the chart area\n\t * zoomSettings: object containing duration, easing and zoomlevel for the zoom behaviours\n\t * */\n\tzoomIn(focal: any, canvasElements: any, zoomSettings?: any) {\n\t\tlet x: number\n\t\tlet y: number\n\t\tlet zoomLevel: number\n\t\tconst settings = zoomSettings ? zoomSettings : canvasZoomSettings\n\n\t\tif (focal) {\n\t\t\tx = focal.x\n\t\t\ty = focal.y\n\t\t\tzoomLevel = 2\n\t\t}\n\n\t\t// the 'viewport' size of the chart\n\t\tconst { width, height } = DOMUtils.getSVGElementSize(this.services.domUtils.getHolder(), {\n\t\t\tuseClientDimensions: true\n\t\t})\n\n\t\tcanvasElements\n\t\t\t.transition()\n\t\t\t.duration(settings.duration)\n\t\t\t.ease(settings.ease)\n\t\t\t.attr(\n\t\t\t\t'transform',\n\t\t\t\t`translate(${width / 2}, ${height / 2}) scale(${zoomLevel}) translate(${-x},${-y})`\n\t\t\t)\n\n\t\t// Dispatch canvas zoom in event\n\t\tthis.services.events.dispatchEvent(Events.CanvasZoom.CANVAS_ZOOM_IN, {\n\t\t\telement: select(focal)\n\t\t})\n\t}\n\n\tzoomOut(canvasElements: any, zoomSettings?: any) {\n\t\tconst settings = zoomSettings ? zoomSettings : canvasZoomSettings\n\t\tcanvasElements\n\t\t\t.transition()\n\t\t\t.duration(settings.duration)\n\t\t\t.ease(settings.ease)\n\t\t\t.attr('transform', '')\n\n\t\t// Dispatch canvas zoom out event\n\t\tthis.services.events.dispatchEvent(Events.CanvasZoom.CANVAS_ZOOM_OUT)\n\t}\n}\n","import { Service } from '@/services/service'\n\nexport class Events extends Service {\n\t// DOM Event target\n\tdocumentFragment: DocumentFragment\n\n\tinit() {\n\t\t// Setup the event fragment on the DOM\n\t\tthis.documentFragment = document.createDocumentFragment()\n\t}\n\n\taddEventListener(type: string, listener: EventListenerOrEventListenerObject) {\n\t\tthis.documentFragment.addEventListener(type, listener)\n\t}\n\n\tremoveEventListener(type: string, listener: EventListenerOrEventListenerObject) {\n\t\tthis.documentFragment.removeEventListener(type, listener)\n\t}\n\n\tdispatchEvent(eventType: string, eventDetail?: object) {\n\t\tlet newEvent: any\n\t\tif (eventDetail) {\n\t\t\tnewEvent = new CustomEvent(eventType, {\n\t\t\t\tdetail: eventDetail\n\t\t\t})\n\t\t} else {\n\t\t\tnewEvent = document.createEvent('Event')\n\t\t\tnewEvent.initEvent(eventType, false, true)\n\t\t}\n\n\t\tthis.documentFragment.dispatchEvent(newEvent)\n\t}\n}\n","import { Service } from '@/services/service'\nimport { ChartModel } from '@/model/model'\n\nexport class Files extends Service {\n\tconstructor(model: ChartModel, services: any) {\n\t\tsuper(model, services)\n\t}\n\n\tdownloadCSV(content: any, filename: string) {\n\t\tconst anchor = document.createElement('a')\n\t\tconst mimeType = 'text/csv;encoding:utf-8'\n\n\t\tif (navigator['msSaveBlob']) {\n\t\t\t// Internet Explorer 10\n\t\t\tnavigator['msSaveBlob'](\n\t\t\t\tnew Blob([content], {\n\t\t\t\t\ttype: mimeType\n\t\t\t\t}),\n\t\t\t\tfilename\n\t\t\t)\n\t\t} else if (URL && 'download' in anchor) {\n\t\t\t// HTML5\n\t\t\tconst href = URL.createObjectURL(\n\t\t\t\tnew Blob([content], {\n\t\t\t\t\ttype: mimeType\n\t\t\t\t})\n\t\t\t)\n\t\t\tanchor.href = href\n\t\t\tanchor.setAttribute('download', filename)\n\n\t\t\t// Add anchor to body\n\t\t\tdocument.body.appendChild(anchor)\n\n\t\t\t// Click anchor\n\t\t\tanchor.click()\n\n\t\t\t// Remove anchor from body\n\t\t\tdocument.body.removeChild(anchor)\n\t\t\tURL.revokeObjectURL(href)\n\t\t} else {\n\t\t\tlocation.href = `data:application/octet-stream,${encodeURIComponent(content)}`\n\t\t}\n\t}\n\n\tdownloadImage(uri: string, name: string) {\n\t\tconst link = document.createElement('a')\n\t\tlink.download = name\n\t\tlink.href = uri\n\t\tdocument.body.appendChild(link)\n\t\tlink.click()\n\t\tdocument.body.removeChild(link)\n\t}\n}\n","import { getProperty } from '@/tools'\nimport { transitions as transitionConfigs } from '@/configuration'\nimport { Service } from '@/services/service'\nimport { Events } from '@/interfaces/enums'\nimport type { Transition } from 'd3'\n\nexport interface setupTransitionConfigs {\n\ttransition?: any // d3 types are causing issues here, hence why using `any`\n\tname?: string\n\tanimate?: boolean\n}\n\nexport class Transitions extends Service {\n\tpendingTransitions: Record<number, Transition<any, any, any, any>> = {}\n\n\tinit() {\n\t\tthis.services.events?.addEventListener(Events.Model.UPDATE, () => {\n\t\t\tthis.pendingTransitions = {}\n\t\t})\n\t}\n\n\tsetupTransition({ transition: t, name, animate }: setupTransitionConfigs) {\n\t\tthis.pendingTransitions[t._id] = t\n\t\tt.on('end interrupt cancel', () => {\n\t\t\tdelete this.pendingTransitions[t._id]\n\t\t})\n\n\t\tif (this.model.getOptions().animations === false || animate === false) {\n\t\t\treturn t.duration(0)\n\t\t}\n\n\t\treturn t.duration(\n\t\t\tgetProperty(transitionConfigs, name, 'duration') || transitionConfigs.default.duration\n\t\t)\n\t}\n\n\tgetPendingTransitions() {\n\t\treturn this.pendingTransitions\n\t}\n}\n","import { toDate } from \"./toDate.js\";\n\n/**\n * @name compareAsc\n * @category Common Helpers\n * @summary Compare the two dates and return -1, 0 or 1.\n *\n * @description\n * Compare the two dates and return 1 if the first date is after the second,\n * -1 if the first date is before the second or 0 if dates are equal.\n *\n * @param dateLeft - The first date to compare\n * @param dateRight - The second date to compare\n *\n * @returns The result of the comparison\n *\n * @example\n * // Compare 11 February 1987 and 10 July 1989:\n * const result = compareAsc(new Date(1987, 1, 11), new Date(1989, 6, 10))\n * //=> -1\n *\n * @example\n * // Sort the array of dates:\n * const result = [\n * new Date(1995, 6, 2),\n * new Date(1987, 1, 11),\n * new Date(1989, 6, 10)\n * ].sort(compareAsc)\n * //=> [\n * // Wed Feb 11 1987 00:00:00,\n * // Mon Jul 10 1989 00:00:00,\n * // Sun Jul 02 1995 00:00:00\n * // ]\n */\nexport function compareAsc(dateLeft, dateRight) {\n const diff = +toDate(dateLeft) - +toDate(dateRight);\n\n if (diff < 0) return -1;\n else if (diff > 0) return 1;\n\n // Return 0 if diff is 0; return NaN if diff is NaN\n return diff;\n}\n\n// Fallback for modularized imports:\nexport default compareAsc;\n","import { normalizeDates } from \"./_lib/normalizeDates.js\";\n\n/**\n * The {@link differenceInCalendarYears} function options.\n */\n\n/**\n * @name differenceInCalendarYears\n * @category Year Helpers\n * @summary Get the number of calendar years between the given dates.\n *\n * @description\n * Get the number of calendar years between the given dates.\n *\n * @param laterDate - The later date\n * @param earlierDate - The earlier date\n * @param options - An object with options\n\n * @returns The number of calendar years\n *\n * @example\n * // How many calendar years are between 31 December 2013 and 11 February 2015?\n * const result = differenceInCalendarYears(\n * new Date(2015, 1, 11),\n * new Date(2013, 11, 31)\n * );\n * //=> 2\n */\nexport function differenceInCalendarYears(laterDate, earlierDate, options) {\n const [laterDate_, earlierDate_] = normalizeDates(\n options?.in,\n laterDate,\n earlierDate,\n );\n return laterDate_.getFullYear() - earlierDate_.getFullYear();\n}\n\n// Fallback for modularized imports:\nexport default differenceInCalendarYears;\n","import { normalizeDates } from \"./_lib/normalizeDates.js\";\nimport { compareAsc } from \"./compareAsc.js\";\nimport { differenceInCalendarYears } from \"./differenceInCalendarYears.js\";\n\n/**\n * The {@link differenceInYears} function options.\n */\n\n/**\n * @name differenceInYears\n * @category Year Helpers\n * @summary Get the number of full years between the given dates.\n *\n * @description\n * Get the number of full years between the given dates.\n *\n * @param laterDate - The later date\n * @param earlierDate - The earlier date\n * @param options - An object with options\n *\n * @returns The number of full years\n *\n * @example\n * // How many full years are between 31 December 2013 and 11 February 2015?\n * const result = differenceInYears(new Date(2015, 1, 11), new Date(2013, 11, 31))\n * //=> 1\n */\nexport function differenceInYears(laterDate, earlierDate, options) {\n const [laterDate_, earlierDate_] = normalizeDates(\n options?.in,\n laterDate,\n earlierDate,\n );\n\n // -1 if the left date is earlier than the right date\n // 2023-12-31 - 2024-01-01 = -1\n const sign = compareAsc(laterDate_, earlierDate_);\n\n // First calculate the difference in calendar years\n // 2024-01-01 - 2023-12-31 = 1 year\n const diff = Math.abs(differenceInCalendarYears(laterDate_, earlierDate_));\n\n // Now we need to calculate if the difference is full. To do that we set\n // both dates to the same year and check if the both date's month and day\n // form a full year.\n laterDate_.setFullYear(1584);\n earlierDate_.setFullYear(1584);\n\n // For it to be true, when the later date is indeed later than the earlier date\n // (2026-02-01 - 2023-12-10 = 3 years), the difference is full if\n // the normalized later date is also later than the normalized earlier date.\n // In our example, 1584-02-01 is earlier than 1584-12-10, so the difference\n // is partial, hence we need to subtract 1 from the difference 3 - 1 = 2.\n const partial = compareAsc(laterDate_, earlierDate_) === -sign;\n\n const result = sign * (diff - +partial);\n\n // Prevent negative zero\n return result === 0 ? 0 : result;\n}\n\n// Fallback for modularized imports:\nexport default differenceInYears;\n","import { constructFrom } from \"./constructFrom.js\";\nimport { toDate } from \"./toDate.js\";\n\n/**\n * The {@link addMonths} function options.\n */\n\n/**\n * @name addMonths\n * @category Month Helpers\n * @summary Add the specified number of months to the given date.\n *\n * @description\n * Add the specified number of months to the given date.\n *\n * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).\n * @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.\n *\n * @param date - The date to be changed\n * @param amount - The amount of months to be added.\n * @param options - The options object\n *\n * @returns The new date with the months added\n *\n * @example\n * // Add 5 months to 1 September 2014:\n * const result = addMonths(new Date(2014, 8, 1), 5)\n * //=> Sun Feb 01 2015 00:00:00\n *\n * // Add one month to 30 January 2023:\n * const result = addMonths(new Date(2023, 0, 30), 1)\n * //=> Tue Feb 28 2023 00:00:00\n */\nexport function addMonths(date, amount, options) {\n const _date = toDate(date, options?.in);\n if (isNaN(amount)) return constructFrom(options?.in || date, NaN);\n if (!amount) {\n // If 0 months, no-op to avoid changing times in the hour before end of DST\n return _date;\n }\n const dayOfMonth = _date.getDate();\n\n // The JS Date object supports date math by accepting out-of-bounds values for\n // month, day, etc. For example, new Date(2020, 0, 0) returns 31 Dec 2019 and\n // new Date(2020, 13, 1) returns 1 Feb 2021. This is *almost* the behavior we\n // want except that dates will wrap around the end of a month, meaning that\n // new Date(2020, 13, 31) will return 3 Mar 2021 not 28 Feb 2021 as desired. So\n // we'll default to the end of the desired month by adding 1 to the desired\n // month and using a date of 0 to back up one day to the end of the desired\n // month.\n const endOfDesiredMonth = constructFrom(options?.in || date, _date.getTime());\n endOfDesiredMonth.setMonth(_date.getMonth() + amount + 1, 0);\n const daysInMonth = endOfDesiredMonth.getDate();\n if (dayOfMonth >= daysInMonth) {\n // If we're already at the end of the month, then this is the correct date\n // and we're done.\n return endOfDesiredMonth;\n } else {\n // Otherwise, we now know that setting the original day-of-month value won't\n // cause an overflow, so set the desired day-of-month. Note that we can't\n // just set the date of `endOfDesiredMonth` because that object may have had\n // its time changed in the unusual case where where a DST transition was on\n // the last day of the month and its local time was in the hour skipped or\n // repeated next to a DST transition. So we use `date` instead which is\n // guaranteed to still have the original time.\n _date.setFullYear(\n endOfDesiredMonth.getFullYear(),\n endOfDesiredMonth.getMonth(),\n dayOfMonth,\n );\n return _date;\n }\n}\n\n// Fallback for modularized imports:\nexport default addMonths;\n","import { addMonths } from \"./addMonths.js\";\n\n/**\n * The {@link addYears} function options.\n */\n\n/**\n * @name addYears\n * @category Year Helpers\n * @summary Add the specified number of years to the given date.\n *\n * @description\n * Add the specified number of years to the given date.\n *\n * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).\n * @typeParam ResultDate - The result `Date` ty