KeyboardEvent.shiftKey

The KeyboardEvent.shiftKey read-only property is a Boolean that indicates if the shift key was pressed (true) or not (false) when the event occurred.

Syntax

var shiftKeyPressed = instanceOfKeyboardEvent.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 Status Comment
Document Object Model (DOM) Level 3 Events Specification
The definition of 'KeyboardEvent.shiftKey' in that specification.
Obsolete Initial definition.

Browser compatibility

BCD tables only load in the browser

See also