KeyboardEvent: metaKey property

The KeyboardEvent.metaKey read-only property returning a boolean value 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.

Warning: At least as of Firefox 48, the ⊞ Windows key is no longer considered the "Meta" key. KeyboardEvent.metaKey is false when the ⊞ Windows key is pressed.

Value

A boolean value.

Examples

html

<button onclick="ismetaKey(event)">Click me with the meta key</button>

<p id="output"></p>

function ismetaKey(e) {
  document.querySelector(
    "#output",
  ).textContent = `metaKey pressed? ${e.metaKey}`;
}

Result

Specifications

Specification
UI Events # dom-keyboardevent-metakey

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`metaKey`	1	12	1.5 Since Firefox 48, the Windows key is no longer treated as a `meta` key.	9	≤12.1	1.2	≤37	18	4 Since Firefox 48, the Windows key is no longer treated as a `meta` key.	≤12.1	1	1.0

Docs

Docs4dev

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