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x/date_fns/setQuarter/index.ts

date-fns Deno package
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import toInteger from '../_lib/toInteger/index.ts'import toDate from '../toDate/index.ts'import setMonth from '../setMonth/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name setQuarter * @category Quarter Helpers * @summary Set the year quarter to the given date. * * @description * Set the year quarter to the given date. * * ### v2.0.0 breaking changes: * * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). * * @param {Date|Number} date - the date to be changed * @param {Number} quarter - the quarter of the new date * @returns {Date} the new date with the quarter set * @throws {TypeError} 2 arguments required * * @example * // Set the 2nd quarter to 2 July 2014: * const result = setQuarter(new Date(2014, 6, 2), 2) * //=> Wed Apr 02 2014 00:00:00 */export default function setQuarter(dirtyDate: Date | number, dirtyQuarter: number): Date { requiredArgs(2, arguments)
const date = toDate(dirtyDate) const quarter = toInteger(dirtyQuarter) const oldQuarter = Math.floor(date.getMonth() / 3) + 1 const diff = quarter - oldQuarter return setMonth(date, date.getMonth() + diff * 3)}