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
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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) | ? | ? | ? | ? | ? |