<html>
<head>
<script src="https://libs.baidu.com/jquery/1.10.2/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>