isSameISOWeekYear
import { isSameISOWeekYear } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@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
function isSameISOWeekYear<DateType extends Date>(dateLeft: DateType | number | string, dateRight: DateType | number | string): boolean;