Linking Models: There are two types of Associations between Models: belongsTo and hasMany. But one represents a many to one association with another model.

Which of the follow is not a supported data store?

Which of the following xtype(s) defines a grid column?

What does the remove() function return?

A ____ in excel is like a notebook

What is the difference between Ext.addClass() and Ext.removeClass()?

Ext JS is a JavaScript library for developing interactive web applications using technologies such as AJAX, DHTML and DOM. It was developed by Sencha.

In Ext, what is a proxy?

Extjs 4.x provide us a new concept when we work with MVC pattern, this is a class when we need to control the views in the Controller class and is useful to provide us a searching of components within Ext.ComponentManager.

What is the difference between Ext.get() and Ext.getDom()?