date-fns-jalali/lastDayOfMonth.js

Modern JavaScript date utility library for jalali calendar

"use strict";
exports.lastDayOfMonth = lastDayOfMonth;
var _index = require("./toDate.js");
var _index2 = require("./_core/getMonth.js");
var _index3 = require("./_core/getFullYear.js");
var _index4 = require("./_core/setFullYear.js");

/**
 * @name lastDayOfMonth
 * @category Month Helpers
 * @summary Return the last day of a month for the given date.
 *
 * @description
 * Return the last day of a month for the given date.
 * The result will be in the local timezone.
 *
 * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
 *
 * @param date - The original date
 *
 * @returns The last day of a month
 *
 * @example
 * // The last day of a month for 2 September 2014 11:55:00:
 * const result = lastDayOfMonth(new Date(2014, 8, 2, 11, 55, 0))
 * //=> Tue Sep 30 2014 00:00:00
 */
function lastDayOfMonth(date) {
  const _date = (0, _index.toDate)(date);
  const month = (0, _index2.getMonth)(_date);
  (0, _index4.setFullYear)(
    _date,
    (0, _index3.getFullYear)(_date),
    month + 1,
    0,
  );
  _date.setHours(0, 0, 0, 0);
  return _date;
}