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