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				3.2 KiB
			
		
		
			
		
	
	
					87 lines
				
				3.2 KiB
			| 
											3 years ago
										 | "use strict"; | ||
|  | 
 | ||
|  | Object.defineProperty(exports, "__esModule", { | ||
|  |   value: true | ||
|  | }); | ||
|  | exports.default = eachWeekOfInterval; | ||
|  | 
 | ||
|  | var _index = _interopRequireDefault(require("../addWeeks/index.js")); | ||
|  | 
 | ||
|  | var _index2 = _interopRequireDefault(require("../startOfWeek/index.js")); | ||
|  | 
 | ||
|  | var _index3 = _interopRequireDefault(require("../toDate/index.js")); | ||
|  | 
 | ||
|  | var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); | ||
|  | 
 | ||
|  | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } | ||
|  | 
 | ||
|  | /** | ||
|  |  * @name eachWeekOfInterval | ||
|  |  * @category Interval Helpers | ||
|  |  * @summary Return the array of weeks within the specified time interval. | ||
|  |  * | ||
|  |  * @description | ||
|  |  * Return the array of weeks within the specified time interval. | ||
|  |  * | ||
|  |  * ### v2.0.0 breaking changes: | ||
|  |  * | ||
|  |  * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
 | ||
|  |  * | ||
|  |  * @param {Interval} interval - the interval. See [Interval]{@link docs/types/Interval} | ||
|  |  * @param {Object} [options] - an object with options. | ||
|  |  * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
 | ||
|  |  * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday) | ||
|  |  * @returns {Date[]} the array with starts of weeks from the week of the interval start to the week of the interval end | ||
|  |  * @throws {TypeError} 1 argument required | ||
|  |  * @throws {RangeError} `options.weekStartsOn` must be 0, 1, ..., 6 | ||
|  |  * @throws {RangeError} The start of an interval cannot be after its end | ||
|  |  * @throws {RangeError} Date in interval cannot be `Invalid Date` | ||
|  |  * | ||
|  |  * @example | ||
|  |  * // Each week within interval 6 October 2014 - 23 November 2014:
 | ||
|  |  * var result = eachWeekOfInterval({ | ||
|  |  *   start: new Date(2014, 9, 6), | ||
|  |  *   end: new Date(2014, 10, 23) | ||
|  |  * }) | ||
|  |  * //=> [
 | ||
|  |  * //   Sun Oct 05 2014 00:00:00,
 | ||
|  |  * //   Sun Oct 12 2014 00:00:00,
 | ||
|  |  * //   Sun Oct 19 2014 00:00:00,
 | ||
|  |  * //   Sun Oct 26 2014 00:00:00,
 | ||
|  |  * //   Sun Nov 02 2014 00:00:00,
 | ||
|  |  * //   Sun Nov 09 2014 00:00:00,
 | ||
|  |  * //   Sun Nov 16 2014 00:00:00,
 | ||
|  |  * //   Sun Nov 23 2014 00:00:00
 | ||
|  |  * // ]
 | ||
|  |  */ | ||
|  | function eachWeekOfInterval(dirtyInterval, options) { | ||
|  |   (0, _index4.default)(1, arguments); | ||
|  |   var interval = dirtyInterval || {}; | ||
|  |   var startDate = (0, _index3.default)(interval.start); | ||
|  |   var endDate = (0, _index3.default)(interval.end); | ||
|  |   var endTime = endDate.getTime(); // Throw an exception if start date is after end date or if any date is `Invalid Date`
 | ||
|  | 
 | ||
|  |   if (!(startDate.getTime() <= endTime)) { | ||
|  |     throw new RangeError('Invalid interval'); | ||
|  |   } | ||
|  | 
 | ||
|  |   var startDateWeek = (0, _index2.default)(startDate, options); | ||
|  |   var endDateWeek = (0, _index2.default)(endDate, options); // Some timezones switch DST at midnight, making start of day unreliable in these timezones, 3pm is a safe bet
 | ||
|  | 
 | ||
|  |   startDateWeek.setHours(15); | ||
|  |   endDateWeek.setHours(15); | ||
|  |   endTime = endDateWeek.getTime(); | ||
|  |   var weeks = []; | ||
|  |   var currentWeek = startDateWeek; | ||
|  | 
 | ||
|  |   while (currentWeek.getTime() <= endTime) { | ||
|  |     currentWeek.setHours(0); | ||
|  |     weeks.push((0, _index3.default)(currentWeek)); | ||
|  |     currentWeek = (0, _index.default)(currentWeek, 1); | ||
|  |     currentWeek.setHours(15); | ||
|  |   } | ||
|  | 
 | ||
|  |   return weeks; | ||
|  | } | ||
|  | 
 | ||
|  | module.exports = exports.default; |