Marc Mintel
5397309103
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65 lines
1.8 KiB
Plaintext
65 lines
1.8 KiB
Plaintext
"use strict";
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exports.eachMonthOfInterval = eachMonthOfInterval;
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var _index = require("./toDate.js");
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/**
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* The {@link eachMonthOfInterval} function options.
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*/
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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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* @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
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*
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* @param interval - The interval
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*
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* @returns The array with starts of months from the month of the interval start to the month of the interval end
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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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* const 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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function eachMonthOfInterval(interval, options) {
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const startDate = (0, _index.toDate)(interval.start);
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const endDate = (0, _index.toDate)(interval.end);
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let reversed = +startDate > +endDate;
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const endTime = reversed ? +startDate : +endDate;
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const currentDate = reversed ? endDate : startDate;
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currentDate.setHours(0, 0, 0, 0);
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currentDate.setDate(1);
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let step = options?.step ?? 1;
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if (!step) return [];
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if (step < 0) {
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step = -step;
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reversed = !reversed;
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}
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const dates = [];
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while (+currentDate <= endTime) {
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dates.push((0, _index.toDate)(currentDate));
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currentDate.setMonth(currentDate.getMonth() + step);
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}
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return reversed ? dates.reverse() : dates;
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}
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