MouseEvent: getModifierState() method

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.

The MouseEvent.getModifierState() method returns the current state of the specified modifier key: true if the modifier is active (i.e., the modifier key is pressed or locked), otherwise, false.

See KeyboardEvent.getModifierState() for details.

Syntax

js
getModifierState(key)

Parameters

key

A modifier key value. The value must be one of the KeyboardEvent.key values which represent modifier keys or "Accel" . This is case-sensitive.

Return value

A boolean value.

Specifications

Specification
UI Events
# dom-mouseevent-getmodifierstate

Browser compatibility

BCD tables only load in the browser

See also