ytyubox

import Combine
let anyCancellable = AnyCancellable(Function())
class Function: Cancellable {
    var function: (() -> Void)? = nil
    func cancel() {
        function = nil
    }
    func callAsFunction() {
        function?()

ytyubox

import UIKit

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        setMainQueueKey()
    }
    @IBAction func trigger(_ sender: Any) {

ytyubox

class Target {
    internal init(_ value: Int) {
        self.value = value
    }
    
    static var current = Target(0)
    var value:Int
    func getCode() -> Int {
        return value * 10 + value
    }

ytyubox

import class UIKit.UITableView
import class UIKit.UIView
import class UIKit.UIActivityIndicatorView
import struct Foundation.IndexSet
import struct Foundation.IndexPath
import struct UIKit.CGRect
import class UIKit.NSLayoutConstraint
public protocol PagingTableViewDelegate:AnyObject {
    func didPaginate(_ pagingTableViewPresenter: PagingTableViewPresenter, to page: Int)
    func paginate(_ pagingTableViewPresenter: PagingTableViewPresenter, to page: Int)

ytyubox

import UIKit
extension UIViewController {
    static func setContainerView<R>(
        target: R,
        _ vc:UIViewController,
        in viewPath: KeyPath<R,UIView>)
        where R: UIViewController {
            target.addChild(vc)
            vc.didMove(toParent: target)
            target[keyPath: viewPath].addSubview(vc.view)

ytyubox

class GamePlayer: ObservableObject {
  @Published var exp: Int = 0
  @Published var health: Int = 100
}

ytyubox

class UIGamePlayer:GamePlayer, ObservableObject {
  override var exp:Int {
    willSet {objectWillChange.send()}
  }
  override var health:Int {
    willSet {objectWillChange.send()}
  }

ytyubox

class GamePlayer {
  var exp: Int = 0
  var health: Int = 100
}

ytyubox

struct SomeView: View {
  @ObservedObject var gamePlayer = UIGamePlayer()
  var body: some View {
        Button(action: {
            self.gamePlayer.exp += 1
        }) {
            Text(gamePlayer.exp.description)
        }
    }
}

ytyubox

extension Array {
    func callAsFunction(_ index:Int) -> Element? {
        indices.contains(index)
            ? self[index]
            : nil
    }
}