observableMacroExample2.swift

@Observable 
class WeatherViewModel {
    var currentTemperature: Double = -5.2
    var city: String = "Sivas"
    var isSnowing: Bool = false
    @ObservationIgnored var isRaining = false
}

@main
struct ObservableDemoApp: App {
    @State var weatherVM = WeatherViewModel()

    var body: some Scene {
        WindowGroup {
            WeatherView()
                .environment(weatherVM)
        }
    }
}


struct WeatherView: View {
    @State var weatherVM = WeatherViewModel()
    
    var body: some View {
        VStack {
            Text("Current City: \(weatherVM.city)")
            Text("°C: \(weatherVM.currentTemperature)")
        }
    }
}