MouseEvent: 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 MouseEvent.metaKey
read-only property is a boolean value that indicates whether the meta key was pressed or not when a given mouse event occurs.
Be aware that many operating systems bind special functionality to the meta key, so this property may be false
even when the key is actually pressed.
On Windows, for example, this key may open the Start menu.
Note: On Macintosh keyboards, this key is the command key (⌘). On Windows keyboards, this key is the Windows key (⊞).
Value
A boolean value, where true
indicates that the key is pressed, and false
indicates that the key is not pressed.
Examples
This example logs the metaKey
property when you trigger a click
event.
HTML
<p>Click anywhere to test the <code>metaKey</code> property.</p>
<p id="log"></p>
JavaScript
let log = document.querySelector("#log");
document.addEventListener("click", logKey);
function logKey(e) {
log.textContent = `The meta key is pressed: ${e.metaKey}`;
}
Result
Specifications
Specification |
---|
UI Events # dom-mouseevent-metakey |
Browser compatibility
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