eventJS

eventJS library creates a pub-sub design. It enable you to use pub-sub in simplest way.

Create Event

Below function to create the event

events.registerEvent(eventName)

where

• eventName: is name of event which will be created. Using the same name other compoents can subscribe to the event.
• data: is the parameter or the data which will be provided to callbacks

Subscribe Event

Below function to subscribe the event

events.on(eventName, callbackfn, {bindobj: obj})

where

• eventName: is name of event which will be subscribe. If there is no such event craeted the error will be thrown
• callbackfn: is callback function which will be called on event
• bindobj: is the object to which callback function will be bind. if it passed the callback will be called in the obj's context

Publishing Event

Below function to subscribe the event

events.emit(eventName, data)

where

• eventName: is name of event which will be publised.
• data: is the parameters to subscribers callback. more parameter can be added after data.

Unsubscribe Event

Below function to subscribe the event

events.off(eventName, callbackfn)

where

• eventName: is name of event which will be unsubscribe. If there is no such event craeted the error will be thrown
• callbackfn: is callback function, which will be called on event, will get unsubscribed and will not be called on event.