KeyboardEvent.shiftKey
只读属性返回一个 Boolean
值,表示事件触发时 shift 键是 (true
) 否(false
)按下。
语法
var shiftKeyPressed = instanceOfKeyboardEvent.shiftKey
返回值
布尔值
示例
<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>
标准
Specification | Status | Comment |
---|---|---|
Document Object Model (DOM) Level 3 Events Specification KeyboardEvent.shiftKey |
Obsolete | Initial definition. |
浏览器兼容性
We're converting our compatibility data into a machine-readable JSON format.
This compatibility table still uses the old format,
because we haven't yet converted the data it contains.
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特性 | Edge | Firefox (Gecko) | Chrome | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
基本支持 | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
特性 | Edge | Firefox Mobile (Gecko) | Android | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|
基本支持 | (Yes) | ? | ? | ? | ? | ? |