KeyboardEvent.metaKey

The KeyboardEvent.metaKey read-only property returning a Boolean that indicates if the Meta key was pressed (true) or not (false) when the event occurred.  Some operating systems may intercept the key so it is never detected.

Note: On Macintosh keyboards, this is the ⌘ Command key. On Windows keyboards, this is the Windows key (⊞ Windows).

At least as of Firefox 48, the (⊞ Windows) key is not considered the "Meta" key. KeyboardEvent.metaKey is false when the (⊞ Windows is pressed. This is probably the same for the ⌘ Command key on Macintosh keyboards.

Syntax

JavaScript
var metaKeyPressed = instanceOfKeyboardEvent.metaKey

Return value

A boolean

Example

JavaScript
function ismetaKey(e) {
  alert("metaKey = " + e.metaKey);
}
HTML
<button onclick="ismetaKey(event)">Click me with the meta key</button>

Specifications

Specification Status Comment
Document Object Model (DOM) Level 3 Events Specification
The definition of 'KeyboardEvent.metaKey' in that specification.		 Working Draft Initial definition

Browser compatibility

Feature Firefox (Gecko) Chrome Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Firefox Mobile (Gecko) Android IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? ? ?

See also

License

© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/keyboardevent/metakey

API DOM MouseEvent NeedsBrowserCompatibility Property Read-only Reference Référence