Do you have practical experience working with the MVVM architectural pattern?

Yes, MVVM (Model-View-ViewModel) is an architectural pattern widely used in iOS development, especially with SwiftUI and Combine.

In MVVM:

• Model handles data and business logic.
• View displays the interface and interacts with the user.
• ViewModel acts as an intermediary between Model and View, containing presentation logic and state.

Practical experience includes:

• Binding View to ViewModel through bindings or reactive frameworks (e.g., Combine).
• Handling user events in ViewModel.
• Updating View when data in ViewModel changes.

Example in SwiftUI:

class UserViewModel: ObservableObject {
    @Published var name: String = ""

    func fetchUser() {
        // load data and update name
        self.name = "Ivan Ivanov"
    }
}

struct UserView: View {
    @StateObject var viewModel = UserViewModel()

    var body: some View {
        Text(viewModel.name)
            .onAppear {
                viewModel.fetchUser()
            }
    }
}

This approach improves testability and separation of concerns in the application.