MouseEvent.ctrlKey
The MouseEvent.ctrlKey
read-only property is a boolean value that indicates whether the ctrl key was pressed or not when a given mouse event occurs.
Note: On Macintosh keyboards, this key is the control 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 ctrlKey
property when you trigger a click
event.
HTML
<p>Click anywhere to test the <code>ctrlKey</code> property.</p>
<p id="log"></p>
JavaScript
let log = document.querySelector('#log');
document.addEventListener('click', logKey);
function logKey(e) {
log.textContent = `The ctrl key is pressed: ${e.ctrlKey}`;
}
Result
Specifications
Specification |
---|
UI Events # dom-mouseevent-ctrlkey |
Browser compatibility
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