In JavaScript, you can generate a random number using the random() method. This method returns a number between 0 and 1 (including 0).
Example
<!DOCTYPE html>
<html>
<body>
<p id="msparagraph"></p>
<button onclick="msrandom()">Generate random number</button>
<script>
function msrandom()
{
var p=document.getElementById('msparagraph');
p.innerHTML=Math.random();
}
</script>
</body>
</html>
