KeyboardEvent: metaKey property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

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.

Note: Before Firefox 118, the ⊞ Windows key was handled as an "OS" key rather than the "Meta" key. KeyboardEvent.metaKey was false when the ⊞ Windows key was pressed.

Value

A boolean value.

Examples

html
<button>Click me with the meta key</button>

<p id="output"></p>
js
document.querySelector("button").addEventListener("click", (e) => {
  document.querySelector("#output").textContent =
    `metaKey pressed? ${e.metaKey}`;
});

Result

Specifications

Specification
UI Events
# dom-keyboardevent-metakey

Browser compatibility

desktop mobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
metaKey
Chrome – Full support
Chrome 1 (Release date: 2008-12-11)
footnote Full support
Edge – Full support
Edge 12 (Release date: 2015-07-29)
footnote Full support
Firefox – Full support
Firefox 1.5 (Release date: 2005-11-29)
footnote
footnote Since Firefox 48, the Windows key is no longer treated as a meta key.
Opera – Full support
Opera 12.1 (Release date: 2012-11-20)
footnote Full support
Safari – Full support
Safari 1.2 (Release date: 2004-02-02)
footnote Full support
Chrome Android – Full support
Chrome Android 18 (Release date: 2012-06-27)
footnote Full support
Firefox for Android – Full support
Firefox for Android 4 (Release date: 2011-03-29)
footnote
footnote Since Firefox for Android 48, the Windows key is no longer treated as a meta key.
Opera Android – Full support
Opera Android 12.1 (Release date: 2012-10-09)
footnote Full support
Safari on iOS – Full support
Safari on iOS 1 (Release date: 2007-06-29)
footnote Full support
Samsung Internet – Full support
Samsung Internet 1 (Release date: 2013-04-27)
footnote Full support
WebView Android – Full support
WebView Android 4.4 (Release date: 2013-12-09)
footnote Full support
WebView on iOS – Full support
WebView on iOS 1 (Release date: 2007-06-29)
footnote Full support

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
See implementation notes.

See also