When you type in the field above, the div element below will display the key number.
<!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"> </script>/* w w w. jav a 2s . c o m*/ <script> $(document).ready(function(){ $("input").keydown(function(event){ $("div").html("Key: " + event.which); }); }); </script> </head> <body> Enter your name: <input type="text"> <div /> </body> </html>