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

Which of the following is NOT a valid way to add an event listener to an Ext.Panel?

What is the name of the control in Ext, that will create a control similar to an html <select>?

What is the shorthand function for addListener()?

Why would a developer use an ArrayStore?

Which function would a developer use to select only certain child elements of an Ext.element?

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

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

One of the most common components used for layout in Ext is which one of the following?

How do you create a new class?

In a form layout, what is the name of the property that will automatically create a label above a control if set?