import { startOfISOWeek } from "https://deno.land/x/date_fns@v2.0.0-alpha.35/index.js";
Examples
// The start of an ISO week for 2 September 2014 11:55:00:
var result = startOfISOWeek(new Date(2014, 8, 2, 11, 55, 0))
//=> Mon Sep 01 2014 00:00:00
// The start of an ISO week for 2 September 2014 11:55:00: var result = startOfISOWeek(new Date(2014, 8, 2, 11, 55, 0)) //=> Mon Sep 01 2014 00:00:00