in QuizDemo/QuizDemo/Controllers/SourceViewController.swift [126:135]
func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
let delete = UITableViewRowAction(style: .default, title: "Delete") { [weak self] (_, _) in
DispatchQueue.main.async {
self?.videoSourceEntities.remove(at: indexPath.section)
tableView.deleteSections([indexPath.section], with: .left)
}
self?.saveData()
}
return [delete]
}