JSFiddle - React, Tailwind, and code Playground

by Tahir Ahmed

HTML

<div id="a">
    <span id="b">0</span>
</div>
<input id="button" type="button" value="Click Me" />
<span id="result"></span>

JavaScript

var myDIV=document.getElementById('a');
var mySpan=document.getElementById('b');
var myButton=document.getElementById('button');
var myResult=document.getElementById('result');

if(window.addEventListener){
    myButton.addEventListener('click',onButtonClicked,false);
    mySpan.addEventListener('DOMSubtreeModified',onSpanModified,false);
}else{
    myButton.attachEvent('onclick',onButtonClicked);
    mySpan.attachEvent('onpropertychange',onSpanModified);
}

function onButtonClicked(){
    //mySpan.innerText=Math.random();
    mySpan.innerHTML=Math.random();
}

function onSpanModified(){
    myResult.innerHTML=mySpan.innerHTML;
}