<!DOCTYPE html>
<html>
<body>
<p>Press any key on the keyboard in the input field to get the Unicode character code and the Unicode key code of the pressed key.</p>
<p><strong>Note:</strong> The keyCode property does not work on the onkeypress event for non-printable, function keys (like CAPS LOCK, CTRL, ESC, F12, etc.).</p>
<input type="text" size="50" onkeypress="uniCharCode(event)" onkeydown="uniKeyCode(event)">
<p>onkeypress - <span id="demo"></span></p>
<p>onkeydown - <span id="demo2"></span></p>
<script>
function uniCharCode(event) {
var char = event.which || event.keyCode;
document.getElementById("demo").innerHTML = "The Unicode CHARACTER code is: " + char;
}
function uniKeyCode(event) {
var key = event.keyCode;
document.getElementById("demo2").innerHTML = "The Unicode KEY code is: " + key;
}
</script>
</body>
</html>