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<!DOCTYPE html> <html> <body> <p>In this example, we show a cross-browser solution for using both the key and keyIdentifier property. The key property is currently only supported in Firefox and IE9+, while keyIdentifier is only supported in Chrome, Safari and Opera 15+.</p> <p>Press the "A" key on the keyboard in the input field to alert some text.</p> <input type="text" size="40" onkeydown="myFunction(event)"> <script> function myFunction(event) { var x = event.key || event.keyIdentifier; /* If the pressed keyboard button is "a" or "A" (using caps lock or shift), alert some text. Tip: the Unicode encoding of the character "a" (and "A") is "U+0041" (for keyIdentifier) */ if (x == "a" || x == "A" || x == "U+0041") { alert ("You pressed the 'A' key!"); } } </script> </body> <!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_event_key_keyidentifier3 by HTTrack Website Copier/3.x [XR&CO'2014], Tue, 07 Jun 2022 20:45:16 GMT --> </html>
