XKCDDataModel.swift

class DataModel: ObservableObject {
  static let url = URL(string: "https://xkcd.com/info.0.json")!
  @Published var image: UIImage? = nil
  @Published var xkcd: XKCD? = nil
  
  func getImage() {
    guard let url = URL(string: xkcd?.img ?? "") else {return}
    if let data = try? Data(contentsOf: url) {
      self.image = UIImage(data: data)
    }
  }
  
  init() {
    Self.url.getFromPublisher(property: &$xkcd)
  }
}