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MouseEvent shiftKey Property

Event Object Reference Event Object

Example

Find out whether or not the "SHIFT" key was pressed when a mouse button is clicked:

if (event.shiftKey) {
    alert("The SHIFT key was pressed!");
} else {
    alert("The SHIFT key was NOT pressed!");
}

Try it yourself »


Definition and Usage

The shiftKey property returns a Boolean value that indicates whether or not the "SHIFT" key was pressed when a mouse event was triggered.

Note: This property is read-only.


Browser Support

Property
shiftKey Yes Yes Yes Yes Yes


Syntax

event.shiftKey

Technical Details

Return Value: A Boolean, indicating whether the "SHIFT" key was pressed when the mouse event occured.

Possible values:

  • true - The shift key was pressed
  • false - The shift key was not pressed
DOM Version: DOM Level 2 Events


Event Object Reference Event Object

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