isThisISOWeek
import { isThisISOWeek } from "https://esm.sh/v135/date-fns@3.6.0/index.d.mts";@example
// If today is 25 September 2014, is 22 September 2014 in this ISO week?
const result = isThisISOWeek(new Date(2014, 8, 22))
//=> true
function isThisISOWeek<DateType extends Date>(date: DateType | number | string): boolean;