import { isThisISOWeek } from "https://deno.land/x/date_fns@v2.0.0-beta.2/index.js";
Examples
// If today is 25 September 2014, is 22 September 2014 in this ISO week?
var result = isThisISOWeek(new Date(2014, 8, 22))
//=> true
// If today is 25 September 2014, is 22 September 2014 in this ISO week? var result = isThisISOWeek(new Date(2014, 8, 22)) //=> true