Javascript DOM KeyboardEvent metaKey Property

Introduction

Find out whether or not the "META" key was pressed when a keyboard key is pressed:

Press a key on the keyboard in the input field to find out if the META key was pressed or not.

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<!DOCTYPE html>
<html>
<body>
<input type="text" onkeydown="isKeyPressed(event)">

<p id="demo"></p>

<script>
function isKeyPressed(event) {//from   www.j  ava2 s.  c  o  m
  var x = document.getElementById("demo");
  if (event.metaKey) {
    x.innerHTML = "The META key was pressed!";
  } else {
    x.innerHTML = "The META key was NOT pressed!";
  }
}
</script>

</body>
</html>

The metaKey property returns a Boolean value that indicates whether or not the "META" key was pressed when a key event was triggered.

On Mac keyboards, the META key is represented by the the "Command/Cmd" key.

This property is read-only.

Possible values:

  • true - The meta key was pressed
  • false - The meta key was not pressed



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