JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.5.1/moment.min.js"></script>
<div id="console"></div>

JavaScript

var date = moment().format('DD/MM/YYYY HH:mm:ss');

var random = moment("April 1st, 2005", "MMM-DD-YYYY");

var now = moment();

var day = now.day();

var week = [['sunday',0],['monday',1],['tuesday',2],['wednesday',3],['thursday',4],['friday',5],['saturday',6]];
    
var monday = moment().day(-(week[1][1] - day));//today minus the difference between monday and today

$("#console").text(monday);

//I need to know the date of the current week's monday
//I need to know the date of the current week's friday