KeyboardEvent: ctrlKey property

The KeyboardEvent.ctrlKey read-only property returns a boolean value that indicates if the <kbd>control</kbd> key was pressed (true) or not (false) when the event occurred.

Value

A boolean value.

Examples

html

<p>
  Press any character key, with or without holding down the CTRL key.

  You can also use the SHIFT key together with the CTRL key.
</p>
<pre id="output"></pre>

const output = document.getElementById("output");

function showChar(e) {
  output.textContent = `Key KeyDown: "${e.key}"
CTRL key KeyDown: ${e.ctrlKey}
`;
}

document.addEventListener("keydown", showChar);

Value

Examples

Specifications

Browser compatibility

See also