Mastering JavaScript Design Patterns - Second Edition

Model View ViewModel

The final pattern we'll look at in this chapter is the Model View ViewModel pattern, more commonly known as MVVM. By now this sort of pattern should be getting quite familiar. Again you can see the flow of information between components in this illustration:

You can see here that many of the same constructs have returned but that the communication between them is somewhat different.

In this variation, what has previously been the controller and presenter is now the view model. Just like with MVC and MVP, the majority of the logic is held within the central component, in this case the view model. The model itself is actually very ...