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The CustomEvent interface is the recommended interface for application-specific event types. Unlike the Event interface, it allows applications to provide contextual information about the event type. Application-specific event types should use a prefix string on the event type name to avoid clashes with future general-purpose event types.


Name Description
detail Specifies some detail information about the Event.


Name Description
initEvent(type, bubbles, cancelable, detail) Initializes attributes of a CustomEvent object.

DOM Core reference

DOM Core specification defines the Interface CustomEvent in 4.2 Interface CustomEvent.