JSFiddle - React, Tailwind, and code Playground

by Mahadevan Sivasubramanian

HTML

<body onload="loadmsg(),sub_string();">
  <label id="wlc_Greeting"></label>
  <br/>
  <div>
    <label id="name"></label>
    <br/>
    <label id="output"></label>
  </div>
</body>

JavaScript

function loadmsg() {
   var greeting = document.getElementById("wlc_Greeting");
   greeting.innerHTML = "Extract Sub string";
 }

 function sub_string() {
   var firstName = document.getElementById("name");
   firstName.innerHTML = "Mahadevan";
   var result = firstName.textContent;
   result.substring(2, 4);
   var output_text = document.getElementById("output");
   output_text.innerHTML = result;
 }