The CompositionEvent() constructor creates a new CompositionEvent object instance.


 myEvent = new CompositionEvent(typeArg, CompositionEventInit)


Is a DOMString representing the name of the event.
A CompositionEventInit dictionary object, which can contain the following members:
  • data: Initializes the data attribute of the CompositionEvent object to the characters generated by the IME composition.

Note: The CompositionEventInit dictionary inherits from the UIEventInit dictionary, so can also accept members defined on there.


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

Browser compatibility

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Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 53 (53) (Yes) No support ?
Feature Android Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? (Yes) 53.0 (53) ? ? ?

See also

Document Tags and Contributors

 Contributors to this page: vapier, chrisdavidmills
 Last updated by: vapier,