MouseEvent.shiftKey
MouseEvent.shiftKey 是只读属性，指出触发鼠标事件时是否按住了 shift 键
Syntax
var shiftKeyPressed = instanceOfMouseEvent.shiftKey
Return value
A boolean
Example
<html>
<head>
<title>shiftKey example</title>
<script type="text/javascript">
function showChar(e){
alert(
"Key Pressed: " + String.fromCharCode(e.charCode) + "\n"
+ "charCode: " + e.charCode + "\n"
+ "SHIFT key pressed: " + e.shiftKey + "\n"
+ "ALT key pressed: " + e.altKey + "\n"
);
}
</script>
</head>
<body onkeypress="showChar(event);">
<p>Press any character key, with or without holding down
the SHIFT key.<br />
You can also use the SHIFT key together with the ALT key.</p>
</body>
</html>
Specifications
| Specification |
|---|
| UI Events # dom-mouseevent-shiftkey |
Browser compatibility
BCD tables only load in the browser