KeyboardEvent.shiftKey

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.

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。

值

一个布尔值。

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>

规范

Specification
UI Events # dom-keyboardevent-shiftkey

浏览器兼容性

BCD tables only load in the browser

参考

KeyboardEvent