MVVM.md

Model-View-ViewModel (MVVM)

MVVM introduces a ViewModel to mediate between View and Model.

Components:

• Model: Data and business logic.
• View: UI component displaying data.
• ViewModel: Mediates data from Model to View, handling UI-specific logic.

Interaction Flow:

User ↔ View ↔ ViewModel ↔ Model

Pros:

• Simplifies UI testing.
• ViewModel can easily bind with View (data binding).

Cons:

• Complexity in handling asynchronous data.
• ViewModel can become bloated.

When to use:

• Client-side applications with complex UI (e.g., Android apps, WPF apps, React/Angular apps).