Marc Mintel
5397309103
Some checks failed
Build & Deploy / 🔍 Prepare (push) Successful in 20s
Build & Deploy / 🧪 QA (push) Failing after 34s
Build & Deploy / 🏗️ Build (push) Has started running
Build & Deploy / 🚀 Deploy (push) Has been cancelled
Build & Deploy / 🧪 Smoke Test (push) Has been cancelled
Build & Deploy / ⚡ Lighthouse (push) Has been cancelled
Build & Deploy / 🔔 Notify (push) Has been cancelled
44 lines
1.5 KiB
Plaintext
44 lines
1.5 KiB
Plaintext
"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;
|
|
}
|