51 lines
1.5 KiB
JavaScript
51 lines
1.5 KiB
JavaScript
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import eachDayOfInterval from '../eachDayOfInterval/index.js';
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import isSunday from '../isSunday/index.js';
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import isWeekend from '../isWeekend/index.js';
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/**
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* @name eachWeekendOfInterval
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* @category Interval Helpers
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* @summary List all the Saturdays and Sundays in the given date interval.
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*
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* @description
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* Get all the Saturdays and Sundays in the given date interval.
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*
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* @param {Interval} interval - the given interval. See [Interval]{@link docs/types/Interval}
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* @returns {Date[]} an array containing all the Saturdays and Sundays
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* @throws {TypeError} 1 argument required
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* @throws {RangeError} The start of an interval cannot be after its end
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* @throws {RangeError} Date in interval cannot be `Invalid Date`
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*
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* @example
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* // Lists all Saturdays and Sundays in the given date interval
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* var result = eachWeekendOfInterval({
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* start: new Date(2018, 8, 17),
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* end: new Date(2018, 8, 30)
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* })
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* //=> [
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* // Sat Sep 22 2018 00:00:00,
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* // Sun Sep 23 2018 00:00:00,
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* // Sat Sep 29 2018 00:00:00,
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* // Sun Sep 30 2018 00:00:00
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* // ]
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*/
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export default function eachWeekendOfInterval(interval) {
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if (arguments.length < 1) {
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throw new TypeError('1 argument required, but only ' + arguments.length + ' present');
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}
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var dateInterval = eachDayOfInterval(interval);
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var weekends = [];
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var index = 0;
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while (index < dateInterval.length) {
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var date = dateInterval[index++];
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if (isWeekend(date)) {
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weekends.push(date);
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if (isSunday(date)) index = index + 5;
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}
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}
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return weekends;
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}
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