addEventListener
Creates an event listener.
Declaration
void addEventListener(
in String type,
in Object listener,
in optional Object extraInfo
);Parameters
- type:
The developer-defined name of the event type to add.
- listener:
The listener object to be added. This object is typically a function.
- extraInfo:
Optional parameter that is used to handle specific types of events. Different events have different formats.
Discussion
Use the extraInfo parameter to handle information for different types of events; for example, specifying the type of metadata a metadata listener is listening for.