SwiftUI

Declarative Framework made with Swift
SwiftUI is convenient but slow

SwiftUI Overview - Xcode - Apple Developer

SwiftUI App abides by the App Protocol.
Structure Body returns 1 or more scenes.
@main marks the entry point of the app.
I like how it is declarative

swift

import SwiftUI
struct LandmarkDetail: View {    var body: some View {        Text("Hello, World!")    }}
struct LandmarkDetail_Previews: PreviewProvider {    static var previews: some View {        LandmarkDetail()    }}

import SwiftUI
struct LandmarkDetail: View {    var body: some View {        Text("Hello, World!")    }}
struct LandmarkDetail_Previews: PreviewProvider {    static var previews: some View {        LandmarkDetail()    }}

swift

struct LandmarkRow_Previews: PreviewProvider {    static var previews: some View {        Group {            LandmarkRow(landmark: landmarks[0])            LandmarkRow(landmark: landmarks[1])        }.previewLayout(.fixed(width: 300, height: 70))    }}

struct LandmarkRow_Previews: PreviewProvider {    static var previews: some View {        Group {            LandmarkRow(landmark: landmarks[0])            LandmarkRow(landmark: landmarks[1])        }.previewLayout(.fixed(width: 300, height: 70))    }}