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					59 lines
				
				2.2 KiB
			| 
											3 years ago
										 | import addHours from '../addHours/index.js'; | ||
|  | import toDate from '../toDate/index.js'; | ||
|  | import requiredArgs from '../_lib/requiredArgs/index.js'; | ||
|  | /** | ||
|  |  * @name eachHourOfInterval | ||
|  |  * @category Interval Helpers | ||
|  |  * @summary Return the array of hours within the specified time interval. | ||
|  |  * | ||
|  |  * @description | ||
|  |  * Return the array of hours within the specified time interval. | ||
|  |  * | ||
|  |  * @param {Interval} interval - the interval. See [Interval]{@link docs/types/Interval} | ||
|  |  * @param {Object} [options] - an object with options. | ||
|  |  * @param {Number} [options.step=1] - the step to increment by. The value should be more than 1. | ||
|  |  * @returns {Date[]} the array with starts of hours from the hour of the interval start to the hour of the interval end | ||
|  |  * @throws {TypeError} 1 argument required | ||
|  |  * @throws {RangeError} `options.step` must be a number greater than 1 | ||
|  |  * @throws {RangeError} The start of an interval cannot be after its end | ||
|  |  * @throws {RangeError} Date in interval cannot be `Invalid Date` | ||
|  |  * | ||
|  |  * @example | ||
|  |  * // Each hour between 6 October 2014, 12:00 and 10 October 2014, 15:00
 | ||
|  |  * var result = eachHourOfInterval({ | ||
|  |  *   start: new Date(2014, 9, 6, 12), | ||
|  |  *   end: new Date(2014, 9, 6, 15) | ||
|  |  * }) | ||
|  |  * //=> [
 | ||
|  |  * //   Mon Oct 06 2014 12:00:00,
 | ||
|  |  * //   Mon Oct 06 2014 13:00:00,
 | ||
|  |  * //   Mon Oct 06 2014 14:00:00,
 | ||
|  |  * //   Mon Oct 06 2014 15:00:00
 | ||
|  |  * // ]
 | ||
|  |  */ | ||
|  | 
 | ||
|  | export default function eachHourOfInterval(dirtyInterval, options) { | ||
|  |   requiredArgs(1, arguments); | ||
|  |   var interval = dirtyInterval || {}; | ||
|  |   var startDate = toDate(interval.start); | ||
|  |   var endDate = toDate(interval.end); | ||
|  |   var startTime = startDate.getTime(); | ||
|  |   var endTime = endDate.getTime(); // Throw an exception if start date is after end date or if any date is `Invalid Date`
 | ||
|  | 
 | ||
|  |   if (!(startTime <= endTime)) { | ||
|  |     throw new RangeError('Invalid interval'); | ||
|  |   } | ||
|  | 
 | ||
|  |   var dates = []; | ||
|  |   var currentDate = startDate; | ||
|  |   currentDate.setMinutes(0, 0, 0); | ||
|  |   var step = options && 'step' in options ? Number(options.step) : 1; | ||
|  |   if (step < 1 || isNaN(step)) throw new RangeError('`options.step` must be a number greater than 1'); | ||
|  | 
 | ||
|  |   while (currentDate.getTime() <= endTime) { | ||
|  |     dates.push(toDate(currentDate)); | ||
|  |     currentDate = addHours(currentDate, step); | ||
|  |   } | ||
|  | 
 | ||
|  |   return dates; | ||
|  | } |