MouseEvent: ctrlKey property - Web APIs | MDN
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 mousemove event.
HTML
html
<p id="log">The ctrl key was pressed while the cursor was moving: false</p>
JavaScript
js
const log = document.querySelector("#log");
window.addEventListener("mousemove", logKey);
function logKey(e) {
log.textContent = `The ctrl key was pressed while the cursor was moving: ${e.ctrlKey}`;
}
Result
Specifications
| Specification |
|---|
| UI Events # dom-mouseevent-ctrlkey |