MouseEvent metaKey property

DOM events MouseEvent

Definition and usage

The metaKey property returns a boolean value indicating whether the "META" key was pressed when the mouse event was triggered.

Not all keyboards have a meta key. For Sun Microsystems keyboards and MIT and LISP machine keyboards, it is common. The meta key is marked as "META" or marked with a solid diamond symbol "◆".

On the Mac keyboard, the META key is represented by the "Command/Cmd" ("⌘") key.

Note:This property is read-only.

Example

Determine if the "META" key was pressed when the mouse button was clicked:

if (event.metaKey) {
  alert("The META key was pressed!");
}
  alert("The META key was NOT pressed!");
}

Try it yourself

Syntax

event.metaKey

Technical details

Return value:

Boolean value indicating whether the "META" key was pressed when the mouse event occurred.

Possible values:

  • true - meta key pressed
  • false - meta key not pressed
DOM version: DOM Level 2 Events

Browser support

Egenskaber Chrome IE Firefox Safari Opera
metaKey Support Support Support Support Support

Relaterede sider

HTML DOM reference manual:MouseEvent altKey egenskab

HTML DOM reference manual:MouseEvent ctrlKey egenskab

HTML DOM reference manual:MouseEvent shiftKey egenskab

DOM events MouseEvent