<html><head><script src="https://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script><script>$(document).ready(function(){ $("input").keydown(function(event){ $("div").html("Key: " + event.which); });});</script></head><body>Enter your name: <input type="text"><p>When you type in the field above, the div element below will display the key number.</p><div></div></body></html>