events

B9 Events Module

Manage event listeners on the b9 instance.

Methods

b9.on( event, listener )

Adds a listener to the list of listeners for this event.

• event {String}
  The name of the event.

• listener {Function}
  A callback to be invoked when the named event is emitted.

b9.off( event, listener )

Removes listener(s) from the list of listeners for this event.

• event {String}
  The name of the event.

• listener {Function}
  A callback which can be matched exactly for removal.

b9.emit( event [,arg1] [,arg2] [,...] )

Triggers the list of listeners, with arguments, for this event.

• event {String}
  The name of the event.

• arg1, arg2, ... {Any}
  Optional argument(s) to pass into listener callbacks.