Tryit Editor v2.9

Edit This Code:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
    var lastms, d;
    $("button").click(function(event){
        if (lastms){
            d = event.timeStamp - lastms
            $("p").text("Milliseconds since last click event: " + d);
        } else {
            $("p").text("Click the button again.");
        }
    lastms = event.timeStamp;
    });  
});  
</script>
</head>
<body>

<button>Click me</button>

<p></p>

</body>
</html>