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x/date_fns/endOfQuarter/index.ts

date-fns Deno package
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import toDate from '../toDate/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @name endOfQuarter * @category Quarter Helpers * @summary Return the end of a year quarter for the given date. * * @description * Return the end of a year quarter for the given date. * The result will be in the local timezone. * * ### 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 original date * @returns {Date} the end of a quarter * @throws {TypeError} 1 argument required * * @example * // The end of a quarter for 2 September 2014 11:55:00: * const result = endOfQuarter(new Date(2014, 8, 2, 11, 55, 0)) * //=> Tue Sep 30 2014 23:59:59.999 */export default function endOfQuarter(dirtyDate: Date | number): Date { requiredArgs(1, arguments)
const date = toDate(dirtyDate) const currentMonth = date.getMonth() const month = currentMonth - (currentMonth % 3) + 3 date.setMonth(month, 0) date.setHours(23, 59, 59, 999) return date}