We will use the innerHTML property of html for changing the button text.
Syntax
element.innerHTML = naw-value;
<!DOCTYPE html>
<html lang='en' xmlns='http://www.w3.org/1999/xhtml'>
<head>
<meta charset='utf-8' />
<title></title>
</head>
<body>
<p>Click on button then change the inner data of button </p>
<button id='btn' onclick='changeData()'>Click Me</button>
<script>
var i = 0;
function changeData() {
document.getElementById('btn').innerHTML = 'You click me ' + (++i) + ' times';
var x = Math.floor((Math.random() * 1000) + 999);
var col = '#bf' + x;
document.body.style.backgroundColor = col;
}
</script>
</body>
</html>
