56 lines
1.4 KiB
JavaScript
56 lines
1.4 KiB
JavaScript
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import { toDate } from "./toDate.mjs";
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/**
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* @name isWithinInterval
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* @category Interval Helpers
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* @summary Is the given date within the interval?
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*
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* @description
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* Is the given date within the interval? (Including start and end.)
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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 date - The date to check
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* @param interval - The interval to check
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*
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* @returns The date is within the interval
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*
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* @example
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* // For the date within the interval:
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* isWithinInterval(new Date(2014, 0, 3), {
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* start: new Date(2014, 0, 1),
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* end: new Date(2014, 0, 7)
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* })
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* //=> true
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*
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* @example
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* // For the date outside of the interval:
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* isWithinInterval(new Date(2014, 0, 10), {
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* start: new Date(2014, 0, 1),
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* end: new Date(2014, 0, 7)
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* })
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* //=> false
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*
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* @example
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* // For date equal to interval start:
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* isWithinInterval(date, { start, end: date })
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* // => true
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*
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* @example
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* // For date equal to interval end:
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* isWithinInterval(date, { start: date, end })
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* // => true
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*/
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export function isWithinInterval(date, interval) {
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const time = +toDate(date);
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const [startTime, endTime] = [
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+toDate(interval.start),
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+toDate(interval.end),
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].sort((a, b) => a - b);
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return time >= startTime && time <= endTime;
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}
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// Fallback for modularized imports:
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export default isWithinInterval;
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