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89 lines
3.1 KiB
89 lines
3.1 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 eachDayOfInterval
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* @category Interval Helpers
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* @summary Return the array of dates within the specified time interval.
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*
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* @description
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* Return the array of dates within the specified time interval.
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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 `eachDay` to `eachDayOfInterval`.
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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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* eachDay(new Date(2014, 0, 10), new Date(2014, 0, 20))
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*
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* // v2.0.0 onward
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*
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* eachDayOfInterval(
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* { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) }
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* )
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* ```
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*
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* @param {Interval} interval - the interval. See [Interval]{@link docs/types/Interval}
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* @param {Object} [options] - an object with options.
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* @param {Number} [options.step=1] - the step to increment by. The value should be more than 1.
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* @returns {Date[]} the array with starts of days from the day of the interval start to the day of the interval end
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* @throws {TypeError} 1 argument required
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* @throws {RangeError} `options.step` must be a number greater than 1
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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 day between 6 October 2014 and 10 October 2014:
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* var result = eachDayOfInterval({
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* start: new Date(2014, 9, 6),
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* end: new Date(2014, 9, 10)
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* })
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* //=> [
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* // Mon Oct 06 2014 00:00:00,
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* // Tue Oct 07 2014 00:00:00,
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* // Wed Oct 08 2014 00:00:00,
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* // Thu Oct 09 2014 00:00:00,
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* // Fri Oct 10 2014 00:00:00
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* // ]
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*/
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export default function eachDayOfInterval(dirtyInterval, options) {
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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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var step = options && 'step' in options ? Number(options.step) : 1;
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if (step < 1 || isNaN(step)) throw new RangeError('`options.step` must be a number greater than 1');
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while (currentDate.getTime() <= endTime) {
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dates.push(toDate(currentDate));
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currentDate.setDate(currentDate.getDate() + step);
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currentDate.setHours(0, 0, 0, 0);
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}
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return dates;
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} |