JSFiddle - React, Tailwind, and code Playground

by Rapha Souza

HTML

<script src="//code.jquery.com/jquery-3.3.1.slim.min.js"></script>
<link rel="stylesheet" href="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">
<script src="//cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>
<script src="//stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

JavaScript

function somarData(txtData,DiasAdd) {
var d = new Date();
d.setTime(Date.parse(txtData.split("/").reverse().join("/"))+(86400000*(DiasAdd)));
var DataFinal;
DataFinal = (d.getDate() < 10)? "0"+d.getDate().toString() : d.getDate().toString();
DataFinal += "/";
DataFinal += ((d.getMonth()+1) < 10)? "0"+(d.getMonth()+1).toString() : (d.getMonth()+1).toString();
return DataFinal+"/"+d.getFullYear().toString();
}