ExtJS4 new discoveries 01_event and method Differences

What is the difference between event and method? Method, you can directly call the object method in the program, obj. method (); event is the processing function when an event occurs. You can use the listeners: {xxx: function () {...} configuration item to listen to the event (){....}} or obj. on (& quot; xxx & quot;, func... what is the difference between event and method?
Method, you can directly call the object method in the program, obj. method ();
Event is the processing function when an event occurs. It is set by listening to the event.
Use configuration items
Listeners :{
Xxx: function (){....}
}
Or
Obj. on ("xxx", function (){....});
The function is called only when an event occurs.