KeyboardEvent: ctrlKey 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 KeyboardEvent.ctrlKey
read-only property returns a
boolean value that indicates if the control key was pressed
(true
) or not (false
) when the event occurred.
Value
A boolean value.
Examples
html
<html lang="en">
<head>
<title>ctrlKey example</title>
<script>
function showChar(e) {
alert(`Key Pressed: ${e.key}\nCTRL key pressed: ${e.ctrlKey}\n`);
}
</script>
</head>
<body onkeypress="showChar(event);">
<p>
Press any character key, with or without holding down the CTRL key.<br />
You can also use the SHIFT key together with the CTRL key.
</p>
</body>
</html>
Specifications
Specification |
---|
UI Events # dom-keyboardevent-ctrlkey |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ctrlKey |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.