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59 lines
2.2 KiB
59 lines
2.2 KiB
3 years ago
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import addHours from '../addHours/index.js';
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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 eachHourOfInterval
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* @category Interval Helpers
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* @summary Return the array of hours within the specified time interval.
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*
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* @description
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* Return the array of hours within the specified time interval.
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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 hours from the hour of the interval start to the hour 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 hour between 6 October 2014, 12:00 and 10 October 2014, 15:00
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* var result = eachHourOfInterval({
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* start: new Date(2014, 9, 6, 12),
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* end: new Date(2014, 9, 6, 15)
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* })
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* //=> [
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* // Mon Oct 06 2014 12:00:00,
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* // Mon Oct 06 2014 13:00:00,
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* // Mon Oct 06 2014 14:00:00,
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* // Mon Oct 06 2014 15:00:00
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* // ]
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*/
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export default function eachHourOfInterval(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 startTime = startDate.getTime();
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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 (!(startTime <= 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.setMinutes(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 = addHours(currentDate, step);
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}
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return dates;
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}
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