JSFiddle - React, Tailwind, and code Playground
by geekrose Lee
HTML
<p id='p1'>Please locate where ‘locate’ occurs!.</p>
<button onclick='myFunction()'>Try it</button>
<p id='demo'></p>JavaScript
function myFunction() {
var str = document.getElementById('p1').innerHTML;
var pos = str.lastIndexOf('locate');
document.getElementById('demo').innerHTML = pos;
}