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<!DOCTYPE html> <html> <body> <p>Press any key on the keyboard in the input field to get the location of the key.</p> <input type="text" size="40" onkeydown="myFunction(event)"> <p>Possible return values:</p> <ul> <li>0 represents a standard key (like "A")</li> <li>1 represents a left key (like the left CTRL key)</li> <li>2 represents a right key (like the right CTRL key)</li> <li>3 represents a key on the numeric keypad (like the number "2" on the right keyboard side)</li> </ul> <p><strong>Note:</strong> The location property is not supported in Safari or IE 8 and earlier versions.</p> <p id="demo"></p> <script> function myFunction(event) { var x = event.location; document.getElementById("demo").innerHTML = "Key location: " + x; } </script> </body> </html>