Add delete functionality

food-tracker-app/MealTableViewController.swift

@@ -18,6 +18,9 @@ class MealTableViewController: UITableViewController {
  override func viewDidLoad() {
  super.viewDidLoad()
 
+ // Use the edit button item provided by the table view controller.
+ navigationItem.leftBarButtonItem = editButtonItem
+
  // Load the sample data.
  loadSampleMeals()
  }
@@ -51,25 +54,22 @@ class MealTableViewController: UITableViewController {
  return cell
  }
 
- /*
  // Override to support conditional editing of the table view.
  override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
  // Return false if you do not want the specified item to be editable.
  return true
  }
- */
 
- /*
  // Override to support editing the table view.
  override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
  if editingStyle == .delete {
  // Delete the row from the data source
+ meals.remove(at: indexPath.row)
  tableView.deleteRows(at: [indexPath], with: .fade)
  } else if editingStyle == .insert {
  // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
  } 
  }
- */
 
  /*
  // Override to support rearranging the table view.