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- 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;
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