KeyboardEvent.ctrlKey
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2015年7月.
KeyboardEvent.ctrlKey 只读属性返回一个 Boolean 值，表示事件触发时 control 键是 (true) 否 (false) 按下。
返回值
一个布尔值。
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-keyboardevent-ctrlkey |
浏览器兼容性
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