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77 lines
2.3 KiB
77 lines
2.3 KiB
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = max;
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var _index = _interopRequireDefault(require("../toDate/index.js"));
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var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* @name max
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* @category Common Helpers
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* @summary Return the latest of the given dates.
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*
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* @description
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* Return the latest of the given dates.
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*
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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* - `max` function now accepts an array of dates rather than spread arguments.
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*
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* ```javascript
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* // Before v2.0.0
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* var date1 = new Date(1989, 6, 10)
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* var date2 = new Date(1987, 1, 11)
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* var maxDate = max(date1, date2)
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*
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* // v2.0.0 onward:
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* var dates = [new Date(1989, 6, 10), new Date(1987, 1, 11)]
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* var maxDate = max(dates)
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* ```
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*
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* @param {Date[]|Number[]} datesArray - the dates to compare
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* @returns {Date} the latest of the dates
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* @throws {TypeError} 1 argument required
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*
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* @example
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* // Which of these dates is the latest?
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* var result = max([
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* new Date(1989, 6, 10),
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* new Date(1987, 1, 11),
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* new Date(1995, 6, 2),
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* new Date(1990, 0, 1)
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* ])
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* //=> Sun Jul 02 1995 00:00:00
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*/
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function max(dirtyDatesArray) {
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(0, _index2.default)(1, arguments);
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var datesArray; // `dirtyDatesArray` is Array, Set or Map, or object with custom `forEach` method
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if (dirtyDatesArray && typeof dirtyDatesArray.forEach === 'function') {
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datesArray = dirtyDatesArray; // If `dirtyDatesArray` is Array-like Object, convert to Array.
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} else if (typeof dirtyDatesArray === 'object' && dirtyDatesArray !== null) {
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datesArray = Array.prototype.slice.call(dirtyDatesArray);
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} else {
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// `dirtyDatesArray` is non-iterable, return Invalid Date
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return new Date(NaN);
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}
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var result;
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datesArray.forEach(function (dirtyDate) {
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var currentDate = (0, _index.default)(dirtyDate);
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if (result === undefined || result < currentDate || isNaN(currentDate)) {
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result = currentDate;
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}
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});
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return result || new Date(NaN);
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}
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module.exports = exports.default; |