37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
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import toInteger from '../_lib/toInteger/index.js';
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import toDate from '../toDate/index.js';
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import setMonth from '../setMonth/index.js';
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/**
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* @name setQuarter
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* @category Quarter Helpers
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* @summary Set the year quarter to the given date.
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*
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* @description
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* Set the year quarter to the given date.
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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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* @param {Date|Number} date - the date to be changed
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* @param {Number} quarter - the quarter of the new date
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* @returns {Date} the new date with the quarter set
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* @throws {TypeError} 2 arguments required
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*
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* @example
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* // Set the 2nd quarter to 2 July 2014:
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* var result = setQuarter(new Date(2014, 6, 2), 2)
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* //=> Wed Apr 02 2014 00:00:00
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*/
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export default function setQuarter(dirtyDate, dirtyQuarter) {
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if (arguments.length < 2) {
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throw new TypeError('2 arguments required, but only ' + arguments.length + ' present');
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}
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var date = toDate(dirtyDate);
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var quarter = toInteger(dirtyQuarter);
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var oldQuarter = Math.floor(date.getMonth() / 3) + 1;
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var diff = quarter - oldQuarter;
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return setMonth(date, date.getMonth() + diff * 3);
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}
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