akshitzaveri

enum Status {
  case notStarted
  case ongoing
  case ended
}

enum Team {
  case first
  case second
}

akshitzaveri

struct Match {
  var score: Int

  init(score: Int) {
    self.score = score
  }
}

func finish(_ match: inout Match) { // Added "inout" keyword
  match.score = 100 // Updating the score here changes the score on the original copy

akshitzaveri

class Match {
  var score: Int

  init(score: Int) {
    self.score = score
  }
}

func finish(_ match: Match) {
  match.score = 100 // Updating the score here changes the score on the original copy

akshitzaveri

// Our Original class
class Example {

    // Original function
    static func start() {
        print("Start")
    }
}

// Subclassing

akshitzaveri

// Our Original class
class Example {
    
    // Original function
    class func start() {
        print("Start")
    }
}

// Subclassing

akshitzaveri

let url = URL(string: "http://jsonplaceholder.typicode.com/posts")!
AF.request(url)
  .responseDecodable(of: [Post].self) { (response) in
    guard let posts = response.value else { return completion([]) }
    completion(posts)
}

akshitzaveri

let url = URL(string: "http://jsonplaceholder.typicode.com/posts")!
let task = URLSession.shared.dataTask(with: url, completionHandler: { data, response, error in
  guard let data = data else { return completion([]) }
  do {
    let posts = try JSONDecoder().decode([Post].self, from: data)
    completion(posts)
  } catch {
    print(error)
    completion([])
  }

akshitzaveri

struct Post {
  let userID, id: Int
  let title, body: String
}

extension Post: Decodable {
  enum CodingKeys: String, CodingKey {
    case userID = "userId"
    case id, title, body
  }

akshitzaveri

import UIKit

final class TableViewAdapter: NSObject, UITableViewDataSource {

  let tableView: UITableView

  init(tableView: UITableView) {
    self.tableView = tableView
    super.init()

akshitzaveri

import UIKit

class ViewController: UIViewController {

  @IBOutlet weak var tableView: UITableView!

  private var adapter: TableViewAdapter!

  override func viewDidLoad() {
    super.viewDidLoad()