Ext JS: what is xtype good for?

Question

I see there are lot\'s of examples in Ext JS where instead of actually creating Ext JS objects, an object literal with an xtype property is passed in.

What

Answer 1

I asked the same question as Joe, but I found the answer. If you use xtype, one approach is to also specify an itemId in the same object:

{ itemId: 'myObject', xtype: 'myClass' ... }

Then you can find it with getComponent() as in

this.getComponent('myObject');