All about MVVM

What is MVVM?

MVVM stands for Model-View-ViewModel
- Model: plain old class object
- View: markup (usually pasred by view engine)
- ViewModel: domain model in cotext of MVVM (a class that containes implementation of business logic)
MVVM is an architectural design pattern used in application development / software engineering.
Main advantage of MVVM (or any other architectural design pattern general) is “seperation of concerns”
MVVM facilitates the separation of the development of the GUI from the development of the business logic

Similarity: You can think of VM in MVVM is equivalent to C in MVC
Differences:
- MVC format is specifically designed to create a separation of concerns between the model and view
- MVVM format with data-binding is designed specifically to allow the view and model to communicate directly with each other
- ViewModel isn’t a controller, instead acts as a binder that binds data between the view and model