recharts-scale
Version:
Scale of Cartesian Coordinates
62 lines (48 loc) • 82.7 kB
JavaScript
/*
* ATTENTION: The "eval" devtool has been used (maybe by default in mode: "development").
* This devtool is neither made for production nor for readable output files.
* It uses "eval()" calls to create a separate source file in the browser devtools.
* If you are trying to read the output file, select a different devtool (https://webpack.js.org/configuration/devtool/)
* or disable the default devtool with "devtool: false".
* If you are looking for production-ready output files, see mode: "production" (https://webpack.js.org/configuration/mode/).
*/
/******/ (() => { // webpackBootstrap
/******/ var __webpack_modules__ = ({
/***/ "./src/getNiceTickValues.js":
/*!**********************************!*\
!*** ./src/getNiceTickValues.js ***!
\**********************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
eval("\n\nObject.defineProperty(exports, \"__esModule\", ({\n value: true\n}));\nexports.getTickValuesFixedDomain = exports.getTickValues = exports.getNiceTickValues = void 0;\n\nvar _decimal = _interopRequireDefault(__webpack_require__(/*! decimal.js-light */ \"./node_modules/decimal.js-light/decimal.js\"));\n\nvar _utils = __webpack_require__(/*! ./util/utils */ \"./src/util/utils.js\");\n\nvar _arithmetic = _interopRequireDefault(__webpack_require__(/*! ./util/arithmetic */ \"./src/util/arithmetic.js\"));\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nfunction _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { 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\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && Symbol.iterator in Object(iter)) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { 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\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { if (typeof Symbol === \"undefined\" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\n/**\n * Calculate a interval of a minimum value and a maximum value\n *\n * @param {Number} min The minimum value\n * @param {Number} max The maximum value\n * @return {Array} An interval\n */\nfunction getValidInterval(_ref) {\n var _ref2 = _slicedToArray(_ref, 2),\n min = _ref2[0],\n max = _ref2[1];\n\n var validMin = min,\n validMax = max; // exchange\n\n if (min > max) {\n validMin = max;\n validMax = min;\n }\n\n return [validMin, validMax];\n}\n/**\n * Calculate the step which is easy to understand between ticks, like 10, 20, 25\n *\n * @param {Decimal} roughStep The rough step calculated by deviding the\n * difference by the tickCount\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @param {Integer} correctionFactor A correction factor\n * @return {Decimal} The step which is easy to understand between two ticks\n */\n\n\nfunction getFormatStep(roughStep, allowDecimals, correctionFactor) {\n if (roughStep.lte(0)) {\n return new _decimal.default(0);\n }\n\n var digitCount = _arithmetic.default.getDigitCount(roughStep.toNumber()); // The ratio between the rough step and the smallest number which has a bigger\n // order of magnitudes than the rough step\n\n\n var digitCountValue = new _decimal.default(10).pow(digitCount);\n var stepRatio = roughStep.div(digitCountValue); // When an integer and a float multiplied, the accuracy of result may be wrong\n\n var stepRatioScale = digitCount !== 1 ? 0.05 : 0.1;\n var amendStepRatio = new _decimal.default(Math.ceil(stepRatio.div(stepRatioScale).toNumber())).add(correctionFactor).mul(stepRatioScale);\n var formatStep = amendStepRatio.mul(digitCountValue);\n return allowDecimals ? formatStep : new _decimal.default(Math.ceil(formatStep));\n}\n/**\n * calculate the ticks when the minimum value equals to the maximum value\n *\n * @param {Number} value The minimum valuue which is also the maximum value\n * @param {Integer} tickCount The count of ticks\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @return {Array} ticks\n */\n\n\nfunction getTickOfSingleValue(value, tickCount, allowDecimals) {\n var step = 1; // calculate the middle value of ticks\n\n var middle = new _decimal.default(value);\n\n if (!middle.isint() && allowDecimals) {\n var absVal = Math.abs(value);\n\n if (absVal < 1) {\n // The step should be a float number when the difference is smaller than 1\n step = new _decimal.default(10).pow(_arithmetic.default.getDigitCount(value) - 1);\n middle = new _decimal.default(Math.floor(middle.div(step).toNumber())).mul(step);\n } else if (absVal > 1) {\n // Return the maximum integer which is smaller than 'value' when 'value' is greater than 1\n middle = new _decimal.default(Math.floor(value));\n }\n } else if (value === 0) {\n middle = new _decimal.default(Math.floor((tickCount - 1) / 2));\n } else if (!allowDecimals) {\n middle = new _decimal.default(Math.floor(value));\n }\n\n var middleIndex = Math.floor((tickCount - 1) / 2);\n var fn = (0, _utils.compose)((0, _utils.map)(function (n) {\n return middle.add(new _decimal.default(n - middleIndex).mul(step)).toNumber();\n }), _utils.range);\n return fn(0, tickCount);\n}\n/**\n * Calculate the step\n *\n * @param {Number} min The minimum value of an interval\n * @param {Number} max The maximum value of an interval\n * @param {Integer} tickCount The count of ticks\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @param {Number} correctionFactor A correction factor\n * @return {Object} The step, minimum value of ticks, maximum value of ticks\n */\n\n\nfunction calculateStep(min, max, tickCount, allowDecimals) {\n var correctionFactor = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;\n\n // dirty hack (for recharts' test)\n if (!Number.isFinite((max - min) / (tickCount - 1))) {\n return {\n step: new _decimal.default(0),\n tickMin: new _decimal.default(0),\n tickMax: new _decimal.default(0)\n };\n } // The step which is easy to understand between two ticks\n\n\n var step = getFormatStep(new _decimal.default(max).sub(min).div(tickCount - 1), allowDecimals, correctionFactor); // A medial value of ticks\n\n var middle; // When 0 is inside the interval, 0 should be a tick\n\n if (min <= 0 && max >= 0) {\n middle = new _decimal.default(0);\n } else {\n // calculate the middle value\n middle = new _decimal.default(min).add(max).div(2); // minus modulo value\n\n middle = middle.sub(new _decimal.default(middle).mod(step));\n }\n\n var belowCount = Math.ceil(middle.sub(min).div(step).toNumber());\n var upCount = Math.ceil(new _decimal.default(max).sub(middle).div(step).toNumber());\n var scaleCount = belowCount + upCount + 1;\n\n if (scaleCount > tickCount) {\n // When more ticks need to cover the interval, step should be bigger.\n return calculateStep(min, max, tickCount, allowDecimals, correctionFactor + 1);\n }\n\n if (scaleCount < tickCount) {\n // When less ticks can cover the interval, we should add some additional ticks\n upCount = max > 0 ? upCount + (tickCount - scaleCount) : upCount;\n belowCount = max > 0 ? belowCount : belowCount + (tickCount - scaleCount);\n }\n\n return {\n step: step,\n tickMin: middle.sub(new _decimal.default(belowCount).mul(step)),\n tickMax: middle.add(new _decimal.default(upCount).mul(step))\n };\n}\n/**\n * Calculate the ticks of an interval, the count of ticks will be guraranteed\n *\n * @param {Number} min, max min: The minimum value, max: The maximum value\n * @param {Integer} tickCount The count of ticks\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @return {Array} ticks\n */\n\n\nfunction getNiceTickValuesFn(_ref3) {\n var _ref4 = _slicedToArray(_ref3, 2),\n min = _ref4[0],\n max = _ref4[1];\n\n var tickCount = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 6;\n var allowDecimals = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;\n // More than two ticks should be return\n var count = Math.max(tickCount, 2);\n\n var _getValidInterval = getValidInterval([min, max]),\n _getValidInterval2 = _slicedToArray(_getValidInterval, 2),\n cormin = _getValidInterval2[0],\n cormax = _getValidInterval2[1];\n\n if (cormin === -Infinity || cormax === Infinity) {\n var _values = cormax === Infinity ? [cormin].concat(_toConsumableArray((0, _utils.range)(0, tickCount - 1).map(function () {\n return Infinity;\n }))) : [].concat(_toConsumableArray((0, _utils.range)(0, tickCount - 1).map(function () {\n return -Infinity;\n })), [cormax]);\n\n return min > max ? (0, _utils.reverse)(_values) : _values;\n }\n\n if (cormin === cormax) {\n return getTickOfSingleValue(cormin, tickCount, allowDecimals);\n } // Get the step between two ticks\n\n\n var _calculateStep = calculateStep(cormin, cormax, count, allowDecimals),\n step = _calculateStep.step,\n tickMin = _calculateStep.tickMin,\n tickMax = _calculateStep.tickMax;\n\n var values = _arithmetic.default.rangeStep(tickMin, tickMax.add(new _decimal.default(0.1).mul(step)), step);\n\n return min > max ? (0, _utils.reverse)(values) : values;\n}\n/**\n * Calculate the ticks of an interval, the count of ticks won't be guraranteed\n *\n * @param {Number} min, max min: The minimum value, max: The maximum value\n * @param {Integer} tickCount The count of ticks\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @return {Array} ticks\n */\n\n\nfunction getTickValuesFn(_ref5) {\n var _ref6 = _slicedToArray(_ref5, 2),\n min = _ref6[0],\n max = _ref6[1];\n\n var tickCount = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 6;\n var allowDecimals = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;\n // More than two ticks should be return\n var count = Math.max(tickCount, 2);\n\n var _getValidInterval3 = getValidInterval([min, max]),\n _getValidInterval4 = _slicedToArray(_getValidInterval3, 2),\n cormin = _getValidInterval4[0],\n cormax = _getValidInterval4[1];\n\n if (cormin === -Infinity || cormax === Infinity) {\n return [min, max];\n }\n\n if (cormin === cormax) {\n return getTickOfSingleValue(cormin, tickCount, allowDecimals);\n }\n\n var step = getFormatStep(new _decimal.default(cormax).sub(cormin).div(count - 1), allowDecimals, 0);\n var fn = (0, _utils.compose)((0, _utils.map)(function (n) {\n return new _decimal.default(cormin).add(new _decimal.default(n).mul(step)).toNumber();\n }), _utils.range);\n var values = fn(0, count).filter(function (entry) {\n return entry >= cormin && entry <= cormax;\n });\n return min > max ? (0, _utils.reverse)(values) : values;\n}\n/**\n * Calculate the ticks of an interval, the count of ticks won't be guraranteed,\n * but the domain will be guaranteed\n *\n * @param {Number} min, max min: The minimum value, max: The maximum value\n * @param {Integer} tickCount The count of ticks\n * @param {Boolean} allowDecimals Allow the ticks to be decimals or not\n * @return {Array} ticks\n */\n\n\nfunction getTickValuesFixedDomainFn(_ref7, tickCount) {\n var _ref8 = _slicedToArray(_ref7, 2),\n min = _ref8[0],\n max = _ref8[1];\n\n var allowDecimals = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;\n\n // More than two ticks should be return\n var _getValidInterval5 = getValidInterval([min, max]),\n _getValidInterval6 = _slicedToArray(_getValidInterval5, 2),\n cormin = _getValidInterval6[0],\n cormax = _getValidInterval6[1];\n\n if (cormin === -Infinity || cormax === Infinity) {\n return [min, max];\n }\n\n if (cormin === cormax) {\n return [cormin];\n }\n\n var count = Math.max(tickCount, 2);\n var step = getFormatStep(new _decimal.default(cormax).sub(cormin).div(count - 1), allowDecimals, 0);\n var values = [].concat(_toConsumableArray(_arithmetic.default.rangeStep(new _decimal.default(cormin), new _decimal.default(cormax).sub(new _decimal.default(0.99).mul(step)), step)), [cormax]);\n return min > max ? (0, _utils.reverse)(values) : values;\n}\n\nvar getNiceTickValues = (0, _utils.memoize)(getNiceTickValuesFn);\nexports.getNiceTickValues = getNiceTickValues;\nvar getTickValues = (0, _utils.memoize)(getTickValuesFn);\nexports.getTickValues = getTickValues;\nvar getTickValuesFixedDomain = (0, _utils.memoize)(getTickValuesFixedDomainFn);\nexports.getTickValuesFixedDomain = getTickValuesFixedDomain;\n\n//# sourceURL=webpack://recharts-scale/./src/getNiceTickValues.js?");
/***/ }),
/***/ "./src/index.js":
/*!**********************!*\
!*** ./src/index.js ***!
\**********************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
eval("\n\nObject.defineProperty(exports, \"__esModule\", ({\n value: true\n}));\nObject.defineProperty(exports, \"getTickValues\", ({\n enumerable: true,\n get: function get() {\n return _getNiceTickValues.getTickValues;\n }\n}));\nObject.defineProperty(exports, \"getNiceTickValues\", ({\n enumerable: true,\n get: function get() {\n return _getNiceTickValues.getNiceTickValues;\n }\n}));\nObject.defineProperty(exports, \"getTickValuesFixedDomain\", ({\n enumerable: true,\n get: function get() {\n return _getNiceTickValues.getTickValuesFixedDomain;\n }\n}));\n\nvar _getNiceTickValues = __webpack_require__(/*! ./getNiceTickValues */ \"./src/getNiceTickValues.js\");\n\n//# sourceURL=webpack://recharts-scale/./src/index.js?");
/***/ }),
/***/ "./src/util/arithmetic.js":
/*!********************************!*\
!*** ./src/util/arithmetic.js ***!
\********************************/
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {
"use strict";
eval("\n\nObject.defineProperty(exports, \"__esModule\", ({\n value: true\n}));\nexports.default = void 0;\n\nvar _decimal = _interopRequireDefault(__webpack_require__(/*! decimal.js-light */ \"./node_modules/decimal.js-light/decimal.js\"));\n\nvar _utils = __webpack_require__(/*! ./utils */ \"./src/util/utils.js\");\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\n/**\n * @fileOverview 一些公用的运算方法\n * @author xile611\n * @date 2015-09-17\n */\n\n/**\n * 获取数值的位数\n * 其中绝对值属于区间[0.1, 1)， 得到的值为0\n * 绝对值属于区间[0.01, 0.1)，得到的位数为 -1\n * 绝对值属于区间[0.001, 0.01)，得到的位数为 -2\n *\n * @param {Number} value 数值\n * @return {Integer} 位数\n */\nfunction getDigitCount(value) {\n var result;\n\n if (value === 0) {\n result = 1;\n } else {\n result = Math.floor(new _decimal.default(value).abs().log(10).toNumber()) + 1;\n }\n\n return result;\n}\n/**\n * 按照固定的步长获取[start, end)这个区间的数据\n * 并且需要处理js计算精度的问题\n *\n * @param {Decimal} start 起点\n * @param {Decimal} end 终点，不包含该值\n * @param {Decimal} step 步长\n * @return {Array} 若干数值\n */\n\n\nfunction rangeStep(start, end, step) {\n var num = new _decimal.default(start);\n var i = 0;\n var result = []; // magic number to prevent infinite loop\n\n while (num.lt(end) && i < 100000) {\n result.push(num.toNumber());\n num = num.add(step);\n i++;\n }\n\n return result;\n}\n/**\n * 对数值进行线性插值\n *\n * @param {Number} a 定义域的极点\n * @param {Number} b 定义域的极点\n * @param {Number} t [0, 1]内的某个值\n * @return {Number} 定义域内的某个值\n */\n\n\nvar interpolateNumber = (0, _utils.curry)(function (a, b, t) {\n var newA = +a;\n var newB = +b;\n return newA + t * (newB - newA);\n});\n/**\n * 线性插值的逆运算\n *\n * @param {Number} a 定义域的极点\n * @param {Number} b 定义域的极点\n * @param {Number} x 可以认为是插值后的一个输出值\n * @return {Number} 当x在 a ~ b这个范围内时，返回值属于[0, 1]\n */\n\nvar uninterpolateNumber = (0, _utils.curry)(function (a, b, x) {\n var diff = b - +a;\n diff = diff || Infinity;\n return (x - a) / diff;\n});\n/**\n * 线性插值的逆运算，并且有截断的操作\n *\n * @param {Number} a 定义域的极点\n * @param {Number} b 定义域的极点\n * @param {Number} x 可以认为是插值后的一个输出值\n * @return {Number} 当x在 a ~ b这个区间内时，返回值属于[0, 1]，\n * 当x不在 a ~ b这个区间时，会截断到 a ~ b 这个区间\n */\n\nvar uninterpolateTruncation = (0, _utils.curry)(function (a, b, x) {\n var diff = b - +a;\n diff = diff || Infinity;\n return Math.max(0, Math.min(1, (x - a) / diff));\n});\nvar _default = {\n rangeStep: rangeStep,\n getDigitCount: getDigitCount,\n interpolateNumber: interpolateNumber,\n uninterpolateNumber: uninterpolateNumber,\n uninterpolateTruncation: uninterpolateTruncation\n};\nexports.default = _default;\n\n//# sourceURL=webpack://recharts-scale/./src/util/arithmetic.js?");
/***/ }),
/***/ "./src/util/utils.js":
/*!***************************!*\
!*** ./src/util/utils.js ***!
\***************************/
/***/ ((__unused_webpack_module, exports) => {
"use strict";
eval("\n\nObject.defineProperty(exports, \"__esModule\", ({\n value: true\n}));\nexports.memoize = exports.reverse = exports.compose = exports.map = exports.range = exports.curry = exports.PLACE_HOLDER = void 0;\n\nfunction _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { 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\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && Symbol.iterator in Object(iter)) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nvar identity = function identity(i) {\n return i;\n};\n\nvar PLACE_HOLDER = {\n '@@functional/placeholder': true\n};\nexports.PLACE_HOLDER = PLACE_HOLDER;\n\nvar isPlaceHolder = function isPlaceHolder(val) {\n return val === PLACE_HOLDER;\n};\n\nvar curry0 = function curry0(fn) {\n return function _curried() {\n if (arguments.length === 0 || arguments.length === 1 && isPlaceHolder(arguments.length <= 0 ? undefined : arguments[0])) {\n return _curried;\n }\n\n return fn.apply(void 0, arguments);\n };\n};\n\nvar curryN = function curryN(n, fn) {\n if (n === 1) {\n return fn;\n }\n\n return curry0(function () {\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n\n var argsLength = args.filter(function (arg) {\n return arg !== PLACE_HOLDER;\n }).length;\n\n if (argsLength >= n) {\n return fn.apply(void 0, args);\n }\n\n return curryN(n - argsLength, curry0(function () {\n for (var _len2 = arguments.length, restArgs = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n restArgs[_key2] = arguments[_key2];\n }\n\n var newArgs = args.map(function (arg) {\n return isPlaceHolder(arg) ? restArgs.shift() : arg;\n });\n return fn.apply(void 0, _toConsumableArray(newArgs).concat(restArgs));\n }));\n });\n};\n\nvar curry = function curry(fn) {\n return curryN(fn.length, fn);\n};\n\nexports.curry = curry;\n\nvar range = function range(begin, end) {\n var arr = [];\n\n for (var i = begin; i < end; ++i) {\n arr[i - begin] = i;\n }\n\n return arr;\n};\n\nexports.range = range;\nvar map = curry(function (fn, arr) {\n if (Array.isArray(arr)) {\n return arr.map(fn);\n }\n\n return Object.keys(arr).map(function (key) {\n return arr[key];\n }).map(fn);\n});\nexports.map = map;\n\nvar compose = function compose() {\n for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n args[_key3] = arguments[_key3];\n }\n\n if (!args.length) {\n return identity;\n }\n\n var fns = args.reverse(); // first function can receive multiply arguments\n\n var firstFn = fns[0];\n var tailsFn = fns.slice(1);\n return function () {\n return tailsFn.reduce(function (res, fn) {\n return fn(res);\n }, firstFn.apply(void 0, arguments));\n };\n};\n\nexports.compose = compose;\n\nvar reverse = function reverse(arr) {\n if (Array.isArray(arr)) {\n return arr.reverse();\n } // can be string\n\n\n return arr.split('').reverse.join('');\n};\n\nexports.reverse = reverse;\n\nvar memoize = function memoize(fn) {\n var lastArgs = null;\n var lastResult = null;\n return function () {\n for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n args[_key4] = arguments[_key4];\n }\n\n if (lastArgs && args.every(function (val, i) {\n return val === lastArgs[i];\n })) {\n return lastResult;\n }\n\n lastArgs = args;\n lastResult = fn.apply(void 0, args);\n return lastResult;\n };\n};\n\nexports.memoize = memoize;\n\n//# sourceURL=webpack://recharts-scale/./src/util/utils.js?");
/***/ }),
/***/ "./node_modules/decimal.js-light/decimal.js":
/*!**************************************************!*\
!*** ./node_modules/decimal.js-light/decimal.js ***!
\**************************************************/
/***/ (function(module, exports, __webpack_require__) {
eval("var __WEBPACK_AMD_DEFINE_RESULT__;/*! decimal.js-light v2.5.1 https://github.com/MikeMcl/decimal.js-light/LICENCE */\r\n;(function (globalScope) {\r\n 'use strict';\r\n\r\n\r\n /*\r\n * decimal.js-light v2.5.1\r\n * An arbitrary-precision Decimal type for JavaScript.\r\n * https://github.com/MikeMcl/decimal.js-light\r\n * Copyright (c) 2020 Michael Mclaughlin <M8ch88l@gmail.com>\r\n * MIT Expat Licence\r\n */\r\n\r\n\r\n // ----------------------------------- EDITABLE DEFAULTS ------------------------------------ //\r\n\r\n\r\n // The limit on the value of `precision`, and on the value of the first argument to\r\n // `toDecimalPlaces`, `toExponential`, `toFixed`, `toPrecision` and `toSignificantDigits`.\r\n var MAX_DIGITS = 1e9, // 0 to 1e9\r\n\r\n\r\n // The initial configuration properties of the Decimal constructor.\r\n Decimal = {\r\n\r\n // These values must be integers within the stated ranges (inclusive).\r\n // Most of these values can be changed during run-time using `Decimal.config`.\r\n\r\n // The maximum number of significant digits of the result of a calculation or base conversion.\r\n // E.g. `Decimal.config({ precision: 20 });`\r\n precision: 20, // 1 to MAX_DIGITS\r\n\r\n // The rounding mode used by default by `toInteger`, `toDecimalPlaces`, `toExponential`,\r\n // `toFixed`, `toPrecision` and `toSignificantDigits`.\r\n //\r\n // ROUND_UP 0 Away from zero.\r\n // ROUND_DOWN 1 Towards zero.\r\n // ROUND_CEIL 2 Towards +Infinity.\r\n // ROUND_FLOOR 3 Towards -Infinity.\r\n // ROUND_HALF_UP 4 Towards nearest neighbour. If equidistant, up.\r\n // ROUND_HALF_DOWN 5 Towards nearest neighbour. If equidistant, down.\r\n // ROUND_HALF_EVEN 6 Towards nearest neighbour. If equidistant, towards even neighbour.\r\n // ROUND_HALF_CEIL 7 Towards nearest neighbour. If equidistant, towards +Infinity.\r\n // ROUND_HALF_FLOOR 8 Towards nearest neighbour. If equidistant, towards -Infinity.\r\n //\r\n // E.g.\r\n // `Decimal.rounding = 4;`\r\n // `Decimal.rounding = Decimal.ROUND_HALF_UP;`\r\n rounding: 4, // 0 to 8\r\n\r\n // The exponent value at and beneath which `toString` returns exponential notation.\r\n // JavaScript numbers: -7\r\n toExpNeg: -7, // 0 to -MAX_E\r\n\r\n // The exponent value at and above which `toString` returns exponential notation.\r\n // JavaScript numbers: 21\r\n toExpPos: 21, // 0 to MAX_E\r\n\r\n // The natural logarithm of 10.\r\n // 115 digits\r\n LN10: '2.302585092994045684017991454684364207601101488628772976033327900967572609677352480235997205089598298341967784042286'\r\n },\r\n\r\n\r\n // ----------------------------------- END OF EDITABLE DEFAULTS ------------------------------- //\r\n\r\n\r\n external = true,\r\n\r\n decimalError = '[DecimalError] ',\r\n invalidArgument = decimalError + 'Invalid argument: ',\r\n exponentOutOfRange = decimalError + 'Exponent out of range: ',\r\n\r\n mathfloor = Math.floor,\r\n mathpow = Math.pow,\r\n\r\n isDecimal = /^(\\d+(\\.\\d*)?|\\.\\d+)(e[+-]?\\d+)?$/i,\r\n\r\n ONE,\r\n BASE = 1e7,\r\n LOG_BASE = 7,\r\n MAX_SAFE_INTEGER = 9007199254740991,\r\n MAX_E = mathfloor(MAX_SAFE_INTEGER / LOG_BASE), // 1286742750677284\r\n\r\n // Decimal.prototype object\r\n P = {};\r\n\r\n\r\n // Decimal prototype methods\r\n\r\n\r\n /*\r\n * absoluteValue abs\r\n * comparedTo cmp\r\n * decimalPlaces dp\r\n * dividedBy div\r\n * dividedToIntegerBy idiv\r\n * equals eq\r\n * exponent\r\n * greaterThan gt\r\n * greaterThanOrEqualTo gte\r\n * isInteger isint\r\n * isNegative isneg\r\n * isPositive ispos\r\n * isZero\r\n * lessThan lt\r\n * lessThanOrEqualTo lte\r\n * logarithm log\r\n * minus sub\r\n * modulo mod\r\n * naturalExponential exp\r\n * naturalLogarithm ln\r\n * negated neg\r\n * plus add\r\n * precision sd\r\n * squareRoot sqrt\r\n * times mul\r\n * toDecimalPlaces todp\r\n * toExponential\r\n * toFixed\r\n * toInteger toint\r\n * toNumber\r\n * toPower pow\r\n * toPrecision\r\n * toSignificantDigits tosd\r\n * toString\r\n * valueOf val\r\n */\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the absolute value of this Decimal.\r\n *\r\n */\r\n P.absoluteValue = P.abs = function () {\r\n var x = new this.constructor(this);\r\n if (x.s) x.s = 1;\r\n return x;\r\n };\r\n\r\n\r\n /*\r\n * Return\r\n * 1 if the value of this Decimal is greater than the value of `y`,\r\n * -1 if the value of this Decimal is less than the value of `y`,\r\n * 0 if they have the same value\r\n *\r\n */\r\n P.comparedTo = P.cmp = function (y) {\r\n var i, j, xdL, ydL,\r\n x = this;\r\n\r\n y = new x.constructor(y);\r\n\r\n // Signs differ?\r\n if (x.s !== y.s) return x.s || -y.s;\r\n\r\n // Compare exponents.\r\n if (x.e !== y.e) return x.e > y.e ^ x.s < 0 ? 1 : -1;\r\n\r\n xdL = x.d.length;\r\n ydL = y.d.length;\r\n\r\n // Compare digit by digit.\r\n for (i = 0, j = xdL < ydL ? xdL : ydL; i < j; ++i) {\r\n if (x.d[i] !== y.d[i]) return x.d[i] > y.d[i] ^ x.s < 0 ? 1 : -1;\r\n }\r\n\r\n // Compare lengths.\r\n return xdL === ydL ? 0 : xdL > ydL ^ x.s < 0 ? 1 : -1;\r\n };\r\n\r\n\r\n /*\r\n * Return the number of decimal places of the value of this Decimal.\r\n *\r\n */\r\n P.decimalPlaces = P.dp = function () {\r\n var x = this,\r\n w = x.d.length - 1,\r\n dp = (w - x.e) * LOG_BASE;\r\n\r\n // Subtract the number of trailing zeros of the last word.\r\n w = x.d[w];\r\n if (w) for (; w % 10 == 0; w /= 10) dp--;\r\n\r\n return dp < 0 ? 0 : dp;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal divided by `y`, truncated to\r\n * `precision` significant digits.\r\n *\r\n */\r\n P.dividedBy = P.div = function (y) {\r\n return divide(this, new this.constructor(y));\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the integer part of dividing the value of this Decimal\r\n * by the value of `y`, truncated to `precision` significant digits.\r\n *\r\n */\r\n P.dividedToIntegerBy = P.idiv = function (y) {\r\n var x = this,\r\n Ctor = x.constructor;\r\n return round(divide(x, new Ctor(y), 0, 1), Ctor.precision);\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is equal to the value of `y`, otherwise return false.\r\n *\r\n */\r\n P.equals = P.eq = function (y) {\r\n return !this.cmp(y);\r\n };\r\n\r\n\r\n /*\r\n * Return the (base 10) exponent value of this Decimal (this.e is the base 10000000 exponent).\r\n *\r\n */\r\n P.exponent = function () {\r\n return getBase10Exponent(this);\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is greater than the value of `y`, otherwise return\r\n * false.\r\n *\r\n */\r\n P.greaterThan = P.gt = function (y) {\r\n return this.cmp(y) > 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is greater than or equal to the value of `y`,\r\n * otherwise return false.\r\n *\r\n */\r\n P.greaterThanOrEqualTo = P.gte = function (y) {\r\n return this.cmp(y) >= 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is an integer, otherwise return false.\r\n *\r\n */\r\n P.isInteger = P.isint = function () {\r\n return this.e > this.d.length - 2;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is negative, otherwise return false.\r\n *\r\n */\r\n P.isNegative = P.isneg = function () {\r\n return this.s < 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is positive, otherwise return false.\r\n *\r\n */\r\n P.isPositive = P.ispos = function () {\r\n return this.s > 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is 0, otherwise return false.\r\n *\r\n */\r\n P.isZero = function () {\r\n return this.s === 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is less than `y`, otherwise return false.\r\n *\r\n */\r\n P.lessThan = P.lt = function (y) {\r\n return this.cmp(y) < 0;\r\n };\r\n\r\n\r\n /*\r\n * Return true if the value of this Decimal is less than or equal to `y`, otherwise return false.\r\n *\r\n */\r\n P.lessThanOrEqualTo = P.lte = function (y) {\r\n return this.cmp(y) < 1;\r\n };\r\n\r\n\r\n /*\r\n * Return the logarithm of the value of this Decimal to the specified base, truncated to\r\n * `precision` significant digits.\r\n *\r\n * If no base is specified, return log[10](x).\r\n *\r\n * log[base](x) = ln(x) / ln(base)\r\n *\r\n * The maximum error of the result is 1 ulp (unit in the last place).\r\n *\r\n * [base] {number|string|Decimal} The base of the logarithm.\r\n *\r\n */\r\n P.logarithm = P.log = function (base) {\r\n var r,\r\n x = this,\r\n Ctor = x.constructor,\r\n pr = Ctor.precision,\r\n wpr = pr + 5;\r\n\r\n // Default base is 10.\r\n if (base === void 0) {\r\n base = new Ctor(10);\r\n } else {\r\n base = new Ctor(base);\r\n\r\n // log[-b](x) = NaN\r\n // log[0](x) = NaN\r\n // log[1](x) = NaN\r\n if (base.s < 1 || base.eq(ONE)) throw Error(decimalError + 'NaN');\r\n }\r\n\r\n // log[b](-x) = NaN\r\n // log[b](0) = -Infinity\r\n if (x.s < 1) throw Error(decimalError + (x.s ? 'NaN' : '-Infinity'));\r\n\r\n // log[b](1) = 0\r\n if (x.eq(ONE)) return new Ctor(0);\r\n\r\n external = false;\r\n r = divide(ln(x, wpr), ln(base, wpr), wpr);\r\n external = true;\r\n\r\n return round(r, pr);\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal minus `y`, truncated to\r\n * `precision` significant digits.\r\n *\r\n */\r\n P.minus = P.sub = function (y) {\r\n var x = this;\r\n y = new x.constructor(y);\r\n return x.s == y.s ? subtract(x, y) : add(x, (y.s = -y.s, y));\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal modulo `y`, truncated to\r\n * `precision` significant digits.\r\n *\r\n */\r\n P.modulo = P.mod = function (y) {\r\n var q,\r\n x = this,\r\n Ctor = x.constructor,\r\n pr = Ctor.precision;\r\n\r\n y = new Ctor(y);\r\n\r\n // x % 0 = NaN\r\n if (!y.s) throw Error(decimalError + 'NaN');\r\n\r\n // Return x if x is 0.\r\n if (!x.s) return round(new Ctor(x), pr);\r\n\r\n // Prevent rounding of intermediate calculations.\r\n external = false;\r\n q = divide(x, y, 0, 1).times(y);\r\n external = true;\r\n\r\n return x.minus(q);\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the natural exponential of the value of this Decimal,\r\n * i.e. the base e raised to the power the value of this Decimal, truncated to `precision`\r\n * significant digits.\r\n *\r\n */\r\n P.naturalExponential = P.exp = function () {\r\n return exp(this);\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the natural logarithm of the value of this Decimal,\r\n * truncated to `precision` significant digits.\r\n *\r\n */\r\n P.naturalLogarithm = P.ln = function () {\r\n return ln(this);\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal negated, i.e. as if multiplied by\r\n * -1.\r\n *\r\n */\r\n P.negated = P.neg = function () {\r\n var x = new this.constructor(this);\r\n x.s = -x.s || 0;\r\n return x;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal plus `y`, truncated to\r\n * `precision` significant digits.\r\n *\r\n */\r\n P.plus = P.add = function (y) {\r\n var x = this;\r\n y = new x.constructor(y);\r\n return x.s == y.s ? add(x, y) : subtract(x, (y.s = -y.s, y));\r\n };\r\n\r\n\r\n /*\r\n * Return the number of significant digits of the value of this Decimal.\r\n *\r\n * [z] {boolean|number} Whether to count integer-part trailing zeros: true, false, 1 or 0.\r\n *\r\n */\r\n P.precision = P.sd = function (z) {\r\n var e, sd, w,\r\n x = this;\r\n\r\n if (z !== void 0 && z !== !!z && z !== 1 && z !== 0) throw Error(invalidArgument + z);\r\n\r\n e = getBase10Exponent(x) + 1;\r\n w = x.d.length - 1;\r\n sd = w * LOG_BASE + 1;\r\n w = x.d[w];\r\n\r\n // If non-zero...\r\n if (w) {\r\n\r\n // Subtract the number of trailing zeros of the last word.\r\n for (; w % 10 == 0; w /= 10) sd--;\r\n\r\n // Add the number of digits of the first word.\r\n for (w = x.d[0]; w >= 10; w /= 10) sd++;\r\n }\r\n\r\n return z && e > sd ? e : sd;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the square root of this Decimal, truncated to `precision`\r\n * significant digits.\r\n *\r\n */\r\n P.squareRoot = P.sqrt = function () {\r\n var e, n, pr, r, s, t, wpr,\r\n x = this,\r\n Ctor = x.constructor;\r\n\r\n // Negative or zero?\r\n if (x.s < 1) {\r\n if (!x.s) return new Ctor(0);\r\n\r\n // sqrt(-x) = NaN\r\n throw Error(decimalError + 'NaN');\r\n }\r\n\r\n e = getBase10Exponent(x);\r\n external = false;\r\n\r\n // Initial estimate.\r\n s = Math.sqrt(+x);\r\n\r\n // Math.sqrt underflow/overflow?\r\n // Pass x to Math.sqrt as integer, then adjust the exponent of the result.\r\n if (s == 0 || s == 1 / 0) {\r\n n = digitsToString(x.d);\r\n if ((n.length + e) % 2 == 0) n += '0';\r\n s = Math.sqrt(n);\r\n e = mathfloor((e + 1) / 2) - (e < 0 || e % 2);\r\n\r\n if (s == 1 / 0) {\r\n n = '5e' + e;\r\n } else {\r\n n = s.toExponential();\r\n n = n.slice(0, n.indexOf('e') + 1) + e;\r\n }\r\n\r\n r = new Ctor(n);\r\n } else {\r\n r = new Ctor(s.toString());\r\n }\r\n\r\n pr = Ctor.precision;\r\n s = wpr = pr + 3;\r\n\r\n // Newton-Raphson iteration.\r\n for (;;) {\r\n t = r;\r\n r = t.plus(divide(x, t, wpr + 2)).times(0.5);\r\n\r\n if (digitsToString(t.d).slice(0, wpr) === (n = digitsToString(r.d)).slice(0, wpr)) {\r\n n = n.slice(wpr - 3, wpr + 1);\r\n\r\n // The 4th rounding digit may be in error by -1 so if the 4 rounding digits are 9999 or\r\n // 4999, i.e. approaching a rounding boundary, continue the iteration.\r\n if (s == wpr && n == '4999') {\r\n\r\n // On the first iteration only, check to see if rounding up gives the exact result as the\r\n // nines may infinitely repeat.\r\n round(t, pr + 1, 0);\r\n\r\n if (t.times(t).eq(x)) {\r\n r = t;\r\n break;\r\n }\r\n } else if (n != '9999') {\r\n break;\r\n }\r\n\r\n wpr += 4;\r\n }\r\n }\r\n\r\n external = true;\r\n\r\n return round(r, pr);\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal times `y`, truncated to\r\n * `precision` significant digits.\r\n *\r\n */\r\n P.times = P.mul = function (y) {\r\n var carry, e, i, k, r, rL, t, xdL, ydL,\r\n x = this,\r\n Ctor = x.constructor,\r\n xd = x.d,\r\n yd = (y = new Ctor(y)).d;\r\n\r\n // Return 0 if either is 0.\r\n if (!x.s || !y.s) return new Ctor(0);\r\n\r\n y.s *= x.s;\r\n e = x.e + y.e;\r\n xdL = xd.length;\r\n ydL = yd.length;\r\n\r\n // Ensure xd points to the longer array.\r\n if (xdL < ydL) {\r\n r = xd;\r\n xd = yd;\r\n yd = r;\r\n rL = xdL;\r\n xdL = ydL;\r\n ydL = rL;\r\n }\r\n\r\n // Initialise the result array with zeros.\r\n r = [];\r\n rL = xdL + ydL;\r\n for (i = rL; i--;) r.push(0);\r\n\r\n // Multiply!\r\n for (i = ydL; --i >= 0;) {\r\n carry = 0;\r\n for (k = xdL + i; k > i;) {\r\n t = r[k] + yd[i] * xd[k - i - 1] + carry;\r\n r[k--] = t % BASE | 0;\r\n carry = t / BASE | 0;\r\n }\r\n\r\n r[k] = (r[k] + carry) % BASE | 0;\r\n }\r\n\r\n // Remove trailing zeros.\r\n for (; !r[--rL];) r.pop();\r\n\r\n if (carry) ++e;\r\n else r.shift();\r\n\r\n y.d = r;\r\n y.e = e;\r\n\r\n return external ? round(y, Ctor.precision) : y;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal rounded to a maximum of `dp`\r\n * decimal places using rounding mode `rm` or `rounding` if `rm` is omitted.\r\n *\r\n * If `dp` is omitted, return a new Decimal whose value is the value of this Decimal.\r\n *\r\n * [dp] {number} Decimal places. Integer, 0 to MAX_DIGITS inclusive.\r\n * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.\r\n *\r\n */\r\n P.toDecimalPlaces = P.todp = function (dp, rm) {\r\n var x = this,\r\n Ctor = x.constructor;\r\n\r\n x = new Ctor(x);\r\n if (dp === void 0) return x;\r\n\r\n checkInt32(dp, 0, MAX_DIGITS);\r\n\r\n if (rm === void 0) rm = Ctor.rounding;\r\n else checkInt32(rm, 0, 8);\r\n\r\n return round(x, dp + getBase10Exponent(x) + 1, rm);\r\n };\r\n\r\n\r\n /*\r\n * Return a string representing the value of this Decimal in exponential notation rounded to\r\n * `dp` fixed decimal places using rounding mode `rounding`.\r\n *\r\n * [dp] {number} Decimal places. Integer, 0 to MAX_DIGITS inclusive.\r\n * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.\r\n *\r\n */\r\n P.toExponential = function (dp, rm) {\r\n var str,\r\n x = this,\r\n Ctor = x.constructor;\r\n\r\n if (dp === void 0) {\r\n str = toString(x, true);\r\n } else {\r\n checkInt32(dp, 0, MAX_DIGITS);\r\n\r\n if (rm === void 0) rm = Ctor.rounding;\r\n else checkInt32(rm, 0, 8);\r\n\r\n x = round(new Ctor(x), dp + 1, rm);\r\n str = toString(x, true, dp + 1);\r\n }\r\n\r\n return str;\r\n };\r\n\r\n\r\n /*\r\n * Return a string representing the value of this Decimal in normal (fixed-point) notation to\r\n * `dp` fixed decimal places and rounded using rounding mode `rm` or `rounding` if `rm` is\r\n * omitted.\r\n *\r\n * As with JavaScript numbers, (-0).toFixed(0) is '0', but e.g. (-0.00001).toFixed(0) is '-0'.\r\n *\r\n * [dp] {number} Decimal places. Integer, 0 to MAX_DIGITS inclusive.\r\n * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.\r\n *\r\n * (-0).toFixed(0) is '0', but (-0.1).toFixed(0) is '-0'.\r\n * (-0).toFixed(1) is '0.0', but (-0.01).toFixed(1) is '-0.0'.\r\n * (-0).toFixed(3) is '0.000'.\r\n * (-0.5).toFixed(0) is '-0'.\r\n *\r\n */\r\n P.toFixed = function (dp, rm) {\r\n var str, y,\r\n x = this,\r\n Ctor = x.constructor;\r\n\r\n if (dp === void 0) return toString(x);\r\n\r\n checkInt32(dp, 0, MAX_DIGITS);\r\n\r\n if (rm === void 0) rm = Ctor.rounding;\r\n else checkInt32(rm, 0, 8);\r\n\r\n y = round(new Ctor(x), dp + getBase10Exponent(x) + 1, rm);\r\n str = toString(y.abs(), false, dp + getBase10Exponent(y) + 1);\r\n\r\n // To determine whether to add the minus sign look at the value before it was rounded,\r\n // i.e. look at `x` rather than `y`.\r\n return x.isneg() && !x.isZero() ? '-' + str : str;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal rounded to a whole number using\r\n * rounding mode `rounding`.\r\n *\r\n */\r\n P.toInteger = P.toint = function () {\r\n var x = this,\r\n Ctor = x.constructor;\r\n return round(new Ctor(x), getBase10Exponent(x) + 1, Ctor.rounding);\r\n };\r\n\r\n\r\n /*\r\n * Return the value of this Decimal converted to a number primitive.\r\n *\r\n */\r\n P.toNumber = function () {\r\n return +this;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal raised to the power `y`,\r\n * truncated to `precision` significant digits.\r\n *\r\n * For non-integer or very large exponents pow(x, y) is calculated using\r\n *\r\n * x^y = exp(y*ln(x))\r\n *\r\n * The maximum error is 1 ulp (unit in last place).\r\n *\r\n * y {number|string|Decimal} The power to which to raise this Decimal.\r\n *\r\n */\r\n P.toPower = P.pow = function (y) {\r\n var e, k, pr, r, sign, yIsInt,\r\n x = this,\r\n Ctor = x.constructor,\r\n guard = 12,\r\n yn = +(y = new Ctor(y));\r\n\r\n // pow(x, 0) = 1\r\n if (!y.s) return new Ctor(ONE);\r\n\r\n x = new Ctor(x);\r\n\r\n // pow(0, y > 0) = 0\r\n // pow(0, y < 0) = Infinity\r\n if (!x.s) {\r\n if (y.s < 1) throw Error(decimalError + 'Infinity');\r\n return x;\r\n }\r\n\r\n // pow(1, y) = 1\r\n if (x.eq(ONE)) return x;\r\n\r\n pr = Ctor.precision;\r\n\r\n // pow(x, 1) = x\r\n if (y.eq(ONE)) return round(x, pr);\r\n\r\n e = y.e;\r\n k = y.d.length - 1;\r\n yIsInt = e >= k;\r\n sign = x.s;\r\n\r\n if (!yIsInt) {\r\n\r\n // pow(x < 0, y non-integer) = NaN\r\n if (sign < 0) throw Error(decimalError + 'NaN');\r\n\r\n // If y is a small integer use the 'exponentiation by squaring' algorithm.\r\n } else if ((k = yn < 0 ? -yn : yn) <= MAX_SAFE_INTEGER) {\r\n r = new Ctor(ONE);\r\n\r\n // Max k of 9007199254740991 takes 53 loop iterations.\r\n // Maximum digits array length; leaves [28, 34] guard digits.\r\n e = Math.ceil(pr / LOG_BASE + 4);\r\n\r\n external = false;\r\n\r\n for (;;) {\r\n if (k % 2) {\r\n r = r.times(x);\r\n truncate(r.d, e);\r\n }\r\n\r\n k = mathfloor(k / 2);\r\n if (k === 0) break;\r\n\r\n x = x.times(x);\r\n truncate(x.d, e);\r\n }\r\n\r\n external = true;\r\n\r\n return y.s < 0 ? new Ctor(ONE).div(r) : round(r, pr);\r\n }\r\n\r\n // Result is negative if x is negative and the last digit of integer y is odd.\r\n sign = sign < 0 && y.d[Math.max(e, k)] & 1 ? -1 : 1;\r\n\r\n x.s = 1;\r\n external = false;\r\n r = y.times(ln(x, pr + guard));\r\n external = true;\r\n r = exp(r);\r\n r.s = sign;\r\n\r\n return r;\r\n };\r\n\r\n\r\n /*\r\n * Return a string representing the value of this Decimal rounded to `sd` significant digits\r\n * using rounding mode `rounding`.\r\n *\r\n * Return exponential notation if `sd` is less than the number of digits necessary to represent\r\n * the integer part of the value in normal notation.\r\n *\r\n * [sd] {number} Significant digits. Integer, 1 to MAX_DIGITS inclusive.\r\n * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.\r\n *\r\n */\r\n P.toPrecision = function (sd, rm) {\r\n var e, str,\r\n x = this,\r\n Ctor = x.constructor;\r\n\r\n if (sd === void 0) {\r\n e = getBase10Exponent(x);\r\n str = toString(x, e <= Ctor.toExpNeg || e >= Ctor.toExpPos);\r\n } else {\r\n checkInt32(sd, 1, MAX_DIGITS);\r\n\r\n if (rm === void 0) rm = Ctor.rounding;\r\n else checkInt32(rm, 0, 8);\r\n\r\n x = round(new Ctor(x), sd, rm);\r\n e = getBase10Exponent(x);\r\n str = toString(x, sd <= e || e <= Ctor.toExpNeg, sd);\r\n }\r\n\r\n return str;\r\n };\r\n\r\n\r\n /*\r\n * Return a new Decimal whose value is the value of this Decimal rounded to a maximum of `sd`\r\n * significant digits using rounding mode `rm`, or to `precision` and `rounding` respectively if\r\n * omitted.\r\n *\r\n * [sd] {number} Significant digits. Integer, 1 to MAX_DIGITS inclusive.\r\n * [rm] {number} Rounding mode. Integer, 0 to 8 inclusive.\r\n *\r\n */\r\n P.toSignificantDigits = P.tosd = function (sd, rm) {\r\n var x = this,\r\n Ctor = x.constructor;\r\n\r\n if (sd === void 0) {\r\n sd = Ctor.precision;\r\n rm = Ctor.rounding;\r\n } else {\r\n checkInt32(sd, 1, MAX_DIGITS);\r\n\r\n if (rm === void 0) rm = Ctor.rounding;\r\n else checkInt32(rm, 0, 8);\r\n }\r\n\r\n return round(new Ctor(x), sd, rm);\r\n };\r\n\r\n\r\n /*\r\n * Return a string representing the value of this Decimal.\r\n *\r\n * Return exponential notation if this Decimal has a positive exponent equal to or greater than\r\n * `toExpPos`, or a negative exponent equal to or less than `toExpNeg`.\r\n *\r\n */\r\n P.toString = P.valueOf = P.val = P.toJSON = function () {\r\n var x = this,\r\n e = getBase10Exponent(x),\r\n Ctor = x.constructor;\r\n\r\n return toString(x, e <= Ctor.toExpNeg || e >= Ctor.toExpPos);\r\n };\r\n\r\n\r\n // Helper functions for Decimal.prototype (P) and/or Decimal methods, and their callers.\r\n\r\n\r\n /*\r\n * add P.minus, P.plus\r\n * checkInt32 P.todp, P.toExponential, P.toFixed, P.toPrecision, P.tosd\r\n * digitsToString P.log, P.sqrt, P.pow, toString, exp, ln\r\n * divide P.div, P.idiv, P.log, P.mod, P.sqrt, exp, ln\r\n * exp P.exp, P.pow\r\n * getBase10Exponent P.exponent, P.sd, P.toint, P.sqrt, P.todp, P.toFixed, P.toPrecision,\r\n * P.toString, divide, round, toString, exp, ln\r\n * getLn10 P.log, ln\r\n * getZeroString digitsToString, toString\r\n * ln P.log, P.ln, P.pow, exp\r\n * parseDecimal