MouseEvent.getModifierState() - Web APIs 编辑

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

Browser compatibility

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See also

• The MouseEvent this method belongs to.
• KeyboardEvent.getModifierState