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<html><body><h1>Keyboard Events</h1><h2>The which Property</h2><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 which and 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) { let char = event.which || event.keyCode; document.getElementById("demo").innerHTML = "The Unicode CHARACTER code is: " + char;}function uniKeyCode(event) { let key = event.which || event.keyCode; document.getElementById("demo2").innerHTML = "The Unicode KEY code is: " + key;}</script></body></html>