64 lines
1.8 KiB
JavaScript
64 lines
1.8 KiB
JavaScript
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import { addMinutes } from "./addMinutes.mjs";
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import { startOfMinute } from "./startOfMinute.mjs";
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import { toDate } from "./toDate.mjs";
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/**
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* The {@link eachMinuteOfInterval} function options.
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*/
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/**
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* @name eachMinuteOfInterval
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* @category Interval Helpers
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* @summary Return the array of minutes within the specified time interval.
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*
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* @description
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* Returns the array of minutes 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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* @param options - An object with options.
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*
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* @returns The array with starts of minutes from the minute of the interval start to the minute of the interval end
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*
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* @example
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* // Each minute between 14 October 2020, 13:00 and 14 October 2020, 13:03
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* const result = eachMinuteOfInterval({
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* start: new Date(2014, 9, 14, 13),
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* end: new Date(2014, 9, 14, 13, 3)
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* })
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* //=> [
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* // Wed Oct 14 2014 13:00:00,
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* // Wed Oct 14 2014 13:01:00,
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* // Wed Oct 14 2014 13:02:00,
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* // Wed Oct 14 2014 13:03:00
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* // ]
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*/
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export function eachMinuteOfInterval(interval, options) {
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const startDate = startOfMinute(toDate(interval.start));
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const endDate = toDate(interval.end);
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let reversed = +startDate > +endDate;
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const endTime = reversed ? +startDate : +endDate;
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let currentDate = reversed ? endDate : startDate;
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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(toDate(currentDate));
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currentDate = addMinutes(currentDate, step);
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}
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return reversed ? dates.reverse() : dates;
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}
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// Fallback for modularized imports:
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export default eachMinuteOfInterval;
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