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89 lines
2.7 KiB
89 lines
2.7 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 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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* ### v2.0.0 breaking changes:
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*
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* - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes).
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*
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* - The function was renamed from `isWithinRange` to `isWithinInterval`.
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* This change was made to mirror the use of the word "interval" in standard ISO 8601:2004 terminology:
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*
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* ```
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* 2.1.3
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* time interval
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* part of the time axis limited by two instants
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* ```
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*
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* Also, this function now accepts an object with `start` and `end` properties
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* instead of two arguments as an interval.
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* This function now throws `RangeError` if the start of the interval is after its end
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* or if any date in the interval is `Invalid Date`.
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*
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* ```javascript
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* // Before v2.0.0
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*
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* isWithinRange(
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* new Date(2014, 0, 3),
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* new Date(2014, 0, 1), new Date(2014, 0, 7)
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* )
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*
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* // v2.0.0 onward
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*
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* isWithinInterval(
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* new Date(2014, 0, 3),
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* { start: new Date(2014, 0, 1), end: new Date(2014, 0, 7) }
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* )
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* ```
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*
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* @param {Date|Number} date - the date to check
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* @param {Interval} interval - the interval to check
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* @returns {Boolean} the date is within the interval
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* @throws {TypeError} 2 arguments 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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* // 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 }) // => 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 }) // => true
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*/
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export default function isWithinInterval(dirtyDate, dirtyInterval) {
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requiredArgs(2, arguments);
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var interval = dirtyInterval || {};
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var time = toDate(dirtyDate).getTime();
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var startTime = toDate(interval.start).getTime();
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var endTime = toDate(interval.end).getTime(); // Throw an exception if start date is after end date or if any date is `Invalid Date`
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if (!(startTime <= endTime)) {
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throw new RangeError('Invalid interval');
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}
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return time >= startTime && time <= endTime;
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} |