timepiece/node_modules/date-fns/setISOWeek.mjs

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2024-05-14 14:54:12 +00:00
import { getISOWeek } from "./getISOWeek.mjs";
import { toDate } from "./toDate.mjs";
/**
* @name setISOWeek
* @category ISO Week Helpers
* @summary Set the ISO week to the given date.
*
* @description
* Set the ISO week to the given date, saving 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 week - The ISO week of the new date
*
* @returns The new date with the ISO week set
*
* @example
* // Set the 53rd ISO week to 7 August 2004:
* const result = setISOWeek(new Date(2004, 7, 7), 53)
* //=> Sat Jan 01 2005 00:00:00
*/
export function setISOWeek(date, week) {
const _date = toDate(date);
const diff = getISOWeek(_date) - week;
_date.setDate(_date.getDate() - diff * 7);
return _date;
}
// Fallback for modularized imports:
export default setISOWeek;