ContentView+EmptyDataModifier.swift

struct ContentView: View {
    
    @State var countries: [Country] = [] // Data source
    
    var body: some View {
        List(countries) { country in
            Text(country.name)
                .font(.title)
        }
        .modifier(EmptyDataModifier(
            items: countries,
            placeholder: Text("No Countries").font(.title)) // Placeholder
        ) 
    }
}