CompositionEvent: initCompositionEvent() method

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The initCompositionEvent() method of the CompositionEvent interface initializes the attributes of a CompositionEvent object instance.

Note: The correct way of creating a CompositionEvent is to use the constructor CompositionEvent().


initCompositionEvent(type, canBubble, cancelable, view, data, locale)



A string representing the type of composition event; this will be one of compositionstart, compositionupdate, or compositionend.


A boolean value specifying whether or not the event can bubble.


A boolean value indicating whether or not the event can be canceled.


The Window object from which the event was generated.


A string representing the value of the data attribute.


A string representing the value of the locale attribute.

Return value

None (undefined).


This method is no longer on a standardization track. It is kept for compatibility purposes. Use the constructor CompositionEvent().

Browser compatibility

BCD tables only load in the browser

See also