JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="dt">

JavaScript

var today = new Date("2015-12-01");

var dd = today.getDate();
var mm = today.getMonth()+1; //January is 0!

var yyyy = today.getFullYear();
if(dd<10){	dd='0'+dd } 
if(mm<10){ mm='0'+mm } 
var today = dd+'/'+mm+'/'+yyyy;
document.getElementById("dt").value = today;