JSFiddle - React, Tailwind, and code Playground

by InferOn

HTML

<input type="text" id="t1">
<input type="text" id="t2">
<input type="text" id="t3">
    <br/>
<input type="button" id="t5" value="Calculate">        
<input type="text" id="t4">

JavaScript

var btn = document.GetElementById('button');
btn.onClick = function(){
    alert('');
}