JSFiddle - React, Tailwind, and code Playground

by hcanning2012

HTML

<div id="one">1</div>

<div id="two">8</div>

<div id="total">0</div>

JavaScript

var one = document.getElementById('one'),
    two = document.getElementById('two'),
    total = document.getElementById('total');

    total.innerHTML = parseInt(one.innerHTML) + parseInt(two.innerHTML);