override func tableView(_ tableView: UITableView,
                        leadingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration?
{
    let weightAction = UIContextualAction(style: .normal, title:  "Gewicht", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
        success(true)
    })
    weightAction.image = UIImage(named: "Scale")
    weightAction.backgroundColor = UIColor(red: 0/255, green: 122/255, blue: 255/255, alpha: 1)
    return UISwipeActionsConfiguration(actions: [weightAction])
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "detailSegue"{
        let rowClicked = (self.tableView.indexPathForSelectedRow?.row)!
        let destVC = segue.destination as! UINavigationController
        let slideVC = destVC.topViewController as! detailViewController
        slideVC.araKuiken = araKuikens[rowClicked]
    }
}