This chapter's been a whistle-stop tour through a set of features and ideas that we should already be familiar with. It was a consolidation of the work we've done over the past few chapters and a demonstration of how to build an application with multiple views, but with a low level of complexity.

In the next chapter, we'll be moving on from full applications and looking at performance and debugging considerations involved in an Ext JS project. How can we design our applications to help developers when issues arise? How can we try and make sure our application feels responsive to end users? We'll also be looking at these questions in-depth in the next chapter.