.swift

struct ContentView: View {
    
    let countries = ["Pakistan", "United States", "Canada", "Iceland", "Thailand", "England", "Australia"]
    
    var body: some View {
        NavigationView {
            List(countries, id: \.self) { country in
                NavigationLink(
                    destination: DetailView(country: country),
                    label: {
                        Text(country)
                    })
            }
            .navigationTitle("Countries")
        }
    }
}

struct DetailView: View {
    
    let country: String
    
    var body: some View {
        Text(country)
            .font(.largeTitle)
    }
}