List+Placeholder.swift

struct ContentView: View {
    
    @State var countries: [Country] = [] // Data source
    
    var body: some View {
        if countries.isEmpty {
            Text("No Countries") // Placeholder
                .font(.largeTitle)
        } else {
            List(countries) { country in // List countires
                Text(country.name)
                    .font(.title)
            }
        }
    }
}