What is MVVM pattern?

MVVM (Model-View-ViewModel) is a software architectural pattern that facilitates the separation of the user interface (View) development from the business logic and data (Model). The ViewModel is an abstraction of the View and exposes public properties and commands that the View can bind to. It acts as a mediator between the View and the Model, handling the View logic and data transformation. MVVM is commonly used in modern UI development frameworks like WPF, Xamarin, and Angular to improve code testability, maintainability, and reusability.