2025-11-13 13:13:34 -07:00

52 lines
1.7 KiB
JavaScript

"use strict";
exports.setMonth = setMonth;
var _index = require("./constructFrom.cjs");
var _index2 = require("./getDaysInMonth.cjs");
var _index3 = require("./toDate.cjs");
var _index4 = require("./_core/setMonth.cjs");
var _index5 = require("./_core/getDate.cjs");
var _index6 = require("./_core/getFullYear.cjs");
var _index7 = require("./_core/setFullYear.cjs");
/**
* The {@link setMonth} function options.
*/
/**
* @name setMonth
* @category Month Helpers
* @summary Set the month to the given date.
*
* @description
* Set the month to the given date.
*
* @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).
* @typeParam ResultDate - The result `Date` type, it is the type returned from the context function if it is passed, or inferred from the arguments.
*
* @param date - The date to be changed
* @param month - The month index to set (0-11)
* @param options - The options
*
* @returns The new date with the month set
*
* @example
* // Set February to 1 September 2014:
* const result = setMonth(new Date(2014, 8, 1), 1)
* //=> Sat Feb 01 2014 00:00:00
*/
function setMonth(date, month, options) {
const _date = (0, _index3.toDate)(date, options?.in);
const year = (0, _index6.getFullYear)(_date);
const day = (0, _index5.getDate)(_date);
const midMonth = (0, _index.constructFrom)(options?.in || date, 0);
(0, _index7.setFullYear)(midMonth, year, month, 15);
midMonth.setHours(0, 0, 0, 0);
const daysInMonth = (0, _index2.getDaysInMonth)(midMonth);
// Set the earlier date, allows to wrap Jan 31 to Feb 28
(0, _index4.setMonth)(_date, month, Math.min(day, daysInMonth));
return _date;
}