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<!DOCTYPE html>
<html>
<body>
​
<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)">
​
<p><strong>Note:</strong> The key property is not supported in Safari or IE 8 and earlier versions.</p>
​
<script>
function myFunction(event) {
  var x = event.key;
​
  // If the pressed keyboard button is "a" or "A" (using caps lock or shift), alert some text.
  if (x == "a" || x == "A") { 
    alert ("You pressed the 'A' key!");
  }
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_event_key_key_if by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:03:01 GMT -->
</html>
​
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