MouseEvent.ctrlKey

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.

MouseEvent.ctrlKey 是只读属性,可返回一个布尔值,当 ctrl 键被按下,返回 true,否则返回 false。

语法

var ctrlKeyPressed = instanceOfMouseEvent.ctrlKey

返回值

A boolean

示例

js
<html>
<head>
<title>ctrlKey example</title>

<script type="text/javascript">

function showChar(e){
  alert(
    "Key Pressed: " + String.fromCharCode(e.charCode) + "\n"
    + "charCode: " + e.charCode + "\n"
    + "CTRL 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>

规范

Specification
UI Events
# dom-mouseevent-ctrlkey

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
ctrlKey

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support

相关链接