import { getWeekOfMonth } from "https://deno.land/x/date_fns@v2.5.1/index.js";
Examples
// Which week of the month is 9 November 2017?
var result = getWeekOfMonth(new Date(2017, 10, 9))
//=> 2
// Which week of the month is 9 November 2017? var result = getWeekOfMonth(new Date(2017, 10, 9)) //=> 2