Linking Models: There are two types of Associations between Models: belongsTo and hasMany. But one represents a one to many ralationship between two models.

What is the root class for all Ext classes?

What is the method to instantiate a class in ExtJS 4.*?

The ______ validation verifies if the given value matches the given regular expression.

What is one advantage of using xtype to create objects in Ext?

Which one of the following is the correct syntax in Ext.js to make an ajax request?

What is the name of the Ext utility function to convert a JSON string into an object?

Which of the following is not an Ext layout type?

What object render itself to the document body?

How is Ext JS licensed?

Which of the following is a required config option for grid column?