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import startOfISOWeekYear from '../startOfISOWeekYear/index.ts'import requiredArgs from '../_lib/requiredArgs/index.ts'
/** * @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 * * ### v2.0.0 breaking changes: * * - [Changes that are common for the whole library](https://github.com/date-fns/date-fns/blob/master/docs/upgradeGuide.md#Common-Changes). * * - The function was renamed from `isSameISOYear` to `isSameISOWeekYear`. * "ISO week year" is short for [ISO week-numbering year](https://en.wikipedia.org/wiki/ISO_week_date). * This change makes the name consistent with * locale-dependent week-numbering year helpers, e.g., `getWeekYear`. * * @param {Date|Number} dateLeft - the first date to check * @param {Date|Number} dateRight - the second date to check * @returns {Boolean} the dates are in the same ISO week-numbering year * @throws {TypeError} 2 arguments required * * @example * // Are 29 December 2003 and 2 January 2005 in the same ISO week-numbering year? * var result = isSameISOWeekYear(new Date(2003, 11, 29), new Date(2005, 0, 2)) * //=> true */export default function isSameISOWeekYear(dirtyDateLeft: Date | number, dirtyDateRight: Date | number): boolean { requiredArgs(2, arguments)
const dateLeftStartOfYear = startOfISOWeekYear(dirtyDateLeft) const dateRightStartOfYear = startOfISOWeekYear(dirtyDateRight)
return dateLeftStartOfYear.getTime() === dateRightStartOfYear.getTime()}