<!DOCTYPE html>
<html lang="en-US">
<body onkeydown="myFunction(event)">
<p>Click on this page once and press shiftKey or any.</p>
<script>
function myFunction(event){
if(event.shiftKey)
alert("shiftKey was Pressed");
else
alert("shiftKey was not Pressed");
}
</script> </body>
</html>