| Path : /var/www/html/infraai.ai/frontend/node_modules/date-fns/ |
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| Current File : /var/www/html/infraai.ai/frontend/node_modules/date-fns/setISOWeekYear.js |
"use strict";
exports.setISOWeekYear = setISOWeekYear;
var _index = require("./constructFrom.js");
var _index2 = require("./differenceInCalendarDays.js");
var _index3 = require("./startOfISOWeekYear.js");
var _index4 = require("./toDate.js");
/**
* @name setISOWeekYear
* @category ISO Week-Numbering Year Helpers
* @summary Set the ISO week-numbering year to the given date.
*
* @description
* Set the ISO week-numbering year to the given date,
* saving the week number and the weekday number.
*
* ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_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).
*
* @param date - The date to be changed
* @param weekYear - The ISO week-numbering year of the new date
*
* @returns The new date with the ISO week-numbering year set
*
* @example
* // Set ISO week-numbering year 2007 to 29 December 2008:
* const result = setISOWeekYear(new Date(2008, 11, 29), 2007)
* //=> Mon Jan 01 2007 00:00:00
*/
function setISOWeekYear(date, weekYear) {
let _date = (0, _index4.toDate)(date);
const diff = (0, _index2.differenceInCalendarDays)(
_date,
(0, _index3.startOfISOWeekYear)(_date),
);
const fourthOfJanuary = (0, _index.constructFrom)(date, 0);
fourthOfJanuary.setFullYear(weekYear, 0, 4);
fourthOfJanuary.setHours(0, 0, 0, 0);
_date = (0, _index3.startOfISOWeekYear)(fourthOfJanuary);
_date.setDate(_date.getDate() + diff);
return _date;
}