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56 lines
1.8 KiB
56 lines
1.8 KiB
import toDate from '../toDate/index.js';
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import requiredArgs from '../_lib/requiredArgs/index.js';
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/**
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* @name eachMonthOfInterval
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* @category Interval Helpers
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* @summary Return the array of months within the specified time interval.
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*
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* @description
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* Return the array of months within the specified time interval.
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*
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* @param {Interval} interval - the interval. See [Interval]{@link docs/types/Interval}
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* @returns {Date[]} the array with starts of months from the month of the interval start to the month of the interval end
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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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* // Each month between 6 February 2014 and 10 August 2014:
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* var result = eachMonthOfInterval({
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* start: new Date(2014, 1, 6),
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* end: new Date(2014, 7, 10)
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* })
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* //=> [
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* // Sat Feb 01 2014 00:00:00,
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* // Sat Mar 01 2014 00:00:00,
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* // Tue Apr 01 2014 00:00:00,
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* // Thu May 01 2014 00:00:00,
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* // Sun Jun 01 2014 00:00:00,
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* // Tue Jul 01 2014 00:00:00,
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* // Fri Aug 01 2014 00:00:00
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* // ]
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*/
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export default function eachMonthOfInterval(dirtyInterval) {
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requiredArgs(1, arguments);
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var interval = dirtyInterval || {};
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var startDate = toDate(interval.start);
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var endDate = toDate(interval.end);
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var endTime = endDate.getTime(); // Throw an exception if start date is after end date or if any date is `Invalid Date`
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if (!(startDate.getTime() <= endTime)) {
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throw new RangeError('Invalid interval');
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}
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var dates = [];
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var currentDate = startDate;
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currentDate.setHours(0, 0, 0, 0);
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currentDate.setDate(1);
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while (currentDate.getTime() <= endTime) {
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dates.push(toDate(currentDate));
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currentDate.setMonth(currentDate.getMonth() + 1);
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}
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return dates;
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} |