index.js 1.34 KB
import toDate from '../toDate/index.js';
import requiredArgs from '../_lib/requiredArgs/index.js';
/**
 * @name lastDayOfQuarter
 * @category Quarter Helpers
 * @summary Return the last day of a year quarter for the given date.
 *
 * @description
 * Return the last day 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
 * @param {Object} [options] - an object with options.
 * @param {0|1|2} [options.additionalDigits=2] - passed to `toDate`. See [toDate]{@link https://date-fns.org/docs/toDate}
 * @returns {Date} the last day of a quarter
 * @throws {TypeError} 1 argument required
 * @throws {RangeError} `options.additionalDigits` must be 0, 1 or 2
 *
 * @example
 * // The last day of a quarter for 2 September 2014 11:55:00:
 * var result = lastDayOfQuarter(new Date(2014, 8, 2, 11, 55, 0))
 * //=> Tue Sep 30 2014 00:00:00
 */

export default function lastDayOfQuarter(dirtyDate) {
  requiredArgs(1, arguments);
  var date = toDate(dirtyDate);
  var currentMonth = date.getMonth();
  var month = currentMonth - currentMonth % 3 + 3;
  date.setMonth(month, 0);
  date.setHours(0, 0, 0, 0);
  return date;
}