41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
import { startOfISOWeekYear } from "./startOfISOWeekYear.js";
|
|
|
|
import { normalizeDates } from "./_lib/normalizeDates.js";
|
|
|
|
/**
|
|
* The {@link isSameISOWeekYear} function options.
|
|
*/
|
|
|
|
/**
|
|
* @name isSameISOWeekYear
|
|
* @category ISO Week-Numbering Year Helpers
|
|
* @summary Are the given dates in the same ISO week-numbering year?
|
|
*
|
|
* @description
|
|
* Are the given dates in the same ISO week-numbering year?
|
|
*
|
|
* ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
|
|
*
|
|
* @param laterDate - The first date to check
|
|
* @param earlierDate - The second date to check
|
|
* @param options - An object with options
|
|
*
|
|
* @returns The dates are in the same ISO week-numbering year
|
|
*
|
|
* @example
|
|
* // Are 29 December 2003 and 2 January 2005 in the same ISO week-numbering year?
|
|
* const result = isSameISOWeekYear(new Date(2003, 11, 29), new Date(2005, 0, 2))
|
|
* //=> true
|
|
*/
|
|
export function isSameISOWeekYear(laterDate, earlierDate, options) {
|
|
const [laterDate_, earlierDate_] = normalizeDates(
|
|
options?.in,
|
|
laterDate,
|
|
earlierDate,
|
|
);
|
|
return +startOfISOWeekYear(laterDate_) === +startOfISOWeekYear(earlierDate_);
|
|
}
|
|
|
|
// Fallback for modularized imports:
|
|
export default isSameISOWeekYear;
|