54 lines
1.6 KiB
JavaScript
54 lines
1.6 KiB
JavaScript
import { toDate } from "./toDate.mjs";
|
|
import { getDefaultOptions } from "./_lib/defaultOptions.mjs";
|
|
|
|
/**
|
|
* The {@link lastDayOfWeek} function options.
|
|
*/
|
|
|
|
/**
|
|
* @name lastDayOfWeek
|
|
* @category Week Helpers
|
|
* @summary Return the last day of a week for the given date.
|
|
*
|
|
* @description
|
|
* Return the last day of a week 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
|
|
* @param options - An object with options
|
|
*
|
|
* @returns The last day of a week
|
|
*
|
|
* @example
|
|
* // The last day of a week for 2 September 2014 11:55:00:
|
|
* const result = lastDayOfWeek(new Date(2014, 8, 2, 11, 55, 0))
|
|
* //=> Sat Sep 06 2014 00:00:00
|
|
*
|
|
* @example
|
|
* // If the week starts on Monday, the last day of the week for 2 September 2014 11:55:00:
|
|
* const result = lastDayOfWeek(new Date(2014, 8, 2, 11, 55, 0), { weekStartsOn: 1 })
|
|
* //=> Sun Sep 07 2014 00:00:00
|
|
*/
|
|
export function lastDayOfWeek(date, options) {
|
|
const defaultOptions = getDefaultOptions();
|
|
const weekStartsOn =
|
|
options?.weekStartsOn ??
|
|
options?.locale?.options?.weekStartsOn ??
|
|
defaultOptions.weekStartsOn ??
|
|
defaultOptions.locale?.options?.weekStartsOn ??
|
|
0;
|
|
|
|
const _date = toDate(date);
|
|
const day = _date.getDay();
|
|
const diff = (day < weekStartsOn ? -7 : 0) + 6 - (day - weekStartsOn);
|
|
|
|
_date.setHours(0, 0, 0, 0);
|
|
_date.setDate(_date.getDate() + diff);
|
|
return _date;
|
|
}
|
|
|
|
// Fallback for modularized imports:
|
|
export default lastDayOfWeek;
|