Mastering the MVVM Design Pattern

The primary purpose of Model-View-ViewModel (MVVM) is to separate the UI code (view) from the data and business logic (model). This separation is achieved through the view model class, which acts as an intermediary between the view and the model.

Figure 2.1 – MVVM architecture

The MVVM pattern offers several key benefits:

• Reusability: The business logic can be reused across different modules or applications since it is independent of the current view.
• Testability: In an MVVM application, you can easily isolate and test the view, model, or view model without their dependencies.
• Clean code base and structure: The project becomes easier to understand when UI code is confined to views, business logic and data structures are in models, and view models act as connectors between them.
• Adaptation: The view model allows you to adapt your model to the UI without altering the data structure and business...