In this chapter, we took a deep dive look into what an MVC framework is, and discussed each of its elements. We discussed the role and responsibilities of the Model, the View, and the Controller in MVC, and how they interact together to create user interfaces. We also had a brief discussion on the benefits of using MVC frameworks. We then took a look at four MVC frameworks that either have very tight integration with TypeScript, or have been written with TypeScript in mind. We implemented the same basic application in each of these frameworks, and compared the differences in concepts and syntax between Backbone, Aurelia, Angular, and React. We also discussed some performance implications to think about when working with each of these frameworks.

In our next chapter, we will take a look at automated testing—unit testing, integration testing, and acceptance testing for our TypeScript applications.