MouseEvent.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.

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

js
<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

See also