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MouseEvent.getModifierState

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 the document of KeyboardEvent.getModifierState() for details.

Syntax

var active = event.getModifierState(keyArg);

Returns

A Boolean

Parameters

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

Specifications

Specification	Status	Comment
Document Object Model (DOM) Level 3 Events Specification The definition of 'getModifierState()' in that specification.	Obsolete	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	47	Yes	?	?	?	?
`"Accel"` parameter	No	?	?	?	?	?