Swipe Action View Controller

//
//  ViewController.swift
//  SampleSwipe
//

import UIKit

class ViewController: UIViewController {

  private var dataSource: [String] = [
    "One",
    "Two",
    "Three",
    "Four",
    "Five",
    "Six"
  ]

  @IBOutlet weak var tableView: UITableView!

  override func viewDidLoad() {
    super.viewDidLoad()
    tableView.dataSource = self
    tableView.delegate = self
  }


}

extension ViewController: UITableViewDelegate {

  func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
    let deleteAction = UIContextualAction(style: .destructive, title: "Delete") { [weak self] _, _, completion in
      self?.dataSource.remove(at: indexPath.row)
      completion(true)
      tableView.reloadData()
    }
    return UISwipeActionsConfiguration(actions: [deleteAction])
  }

}

extension ViewController: UITableViewDataSource {

  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return dataSource.count
  }

  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "testCell", for: indexPath)
    cell.textLabel?.text = dataSource[indexPath.row]
    cell.detailTextLabel?.text = "\(indexPath.row)"
    return cell
  }


}