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					56 lines
				
				1.8 KiB
			
		
		
			
		
	
	
					56 lines
				
				1.8 KiB
			| 
											3 years ago
										 | "use strict"; | ||
|  | 
 | ||
|  | Object.defineProperty(exports, "__esModule", { | ||
|  |   value: true | ||
|  | }); | ||
|  | exports.default = setMonth; | ||
|  | 
 | ||
|  | var _index = _interopRequireDefault(require("../_lib/toInteger/index.js")); | ||
|  | 
 | ||
|  | var _index2 = _interopRequireDefault(require("../toDate/index.js")); | ||
|  | 
 | ||
|  | var _index3 = _interopRequireDefault(require("../getDaysInMonth/index.js")); | ||
|  | 
 | ||
|  | var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js")); | ||
|  | 
 | ||
|  | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } | ||
|  | 
 | ||
|  | /** | ||
|  |  * @name setMonth | ||
|  |  * @category Month Helpers | ||
|  |  * @summary Set the month to the given date. | ||
|  |  * | ||
|  |  * @description | ||
|  |  * Set the month to the given date. | ||
|  |  * | ||
|  |  * ### 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 {Date|Number} date - the date to be changed | ||
|  |  * @param {Number} month - the month of the new date | ||
|  |  * @returns {Date} the new date with the month set | ||
|  |  * @throws {TypeError} 2 arguments required | ||
|  |  * | ||
|  |  * @example | ||
|  |  * // Set February to 1 September 2014:
 | ||
|  |  * var result = setMonth(new Date(2014, 8, 1), 1) | ||
|  |  * //=> Sat Feb 01 2014 00:00:00
 | ||
|  |  */ | ||
|  | function setMonth(dirtyDate, dirtyMonth) { | ||
|  |   (0, _index4.default)(2, arguments); | ||
|  |   var date = (0, _index2.default)(dirtyDate); | ||
|  |   var month = (0, _index.default)(dirtyMonth); | ||
|  |   var year = date.getFullYear(); | ||
|  |   var day = date.getDate(); | ||
|  |   var dateWithDesiredMonth = new Date(0); | ||
|  |   dateWithDesiredMonth.setFullYear(year, month, 15); | ||
|  |   dateWithDesiredMonth.setHours(0, 0, 0, 0); | ||
|  |   var daysInMonth = (0, _index3.default)(dateWithDesiredMonth); // Set the last day of the new month
 | ||
|  |   // if the original date was the last day of the longer month
 | ||
|  | 
 | ||
|  |   date.setMonth(month, Math.min(day, daysInMonth)); | ||
|  |   return date; | ||
|  | } | ||
|  | 
 | ||
|  | module.exports = exports.default; |