import SwiftUIstruct SwiftUIView: View { var customClousure: (String, String) -> String = { a, b in return "\(a), \(b)!" } var body: some View { Text("Hello, World!") Text(customClousure("Hello", "World")) Text(customString(a: "Hello", b:"World")) } func customString(a: String, b: String) -> String { return "\(a), \(b)!" }}#Preview { ..