Closures with UIAlertController: Handlers

TableViewController.swift

//When we select a cell, we want to bring up an alert
// We use the didSelectRowAtIndexPath method from UITableViewDelegate


override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        
       //CREATE MENU
        let optionMenu = UIAlertController(title: "Select One", message: "Press one", preferredStyle: .Alert)
        
        //MARK: Handler
        let okButtonHandler = { (action:UIAlertAction!) -> Void in
            
            let alertController = UIAlertController(title: "What you see", message: "You selected \(self.restaurantNames[indexPath.row])", preferredStyle: .Alert)
            
            let okAction = UIAlertAction(title: "OK", style: .Default, handler: nil)
            
            alertController.addAction(okAction)
            
            self.presentViewController(alertController, animated: true, completion: nil)
        }
        
            //Add action to menu ( an action is the button in the modal )
           optionMenu.addAction(UIAlertAction(title: "OK", style: .Default, handler: okButtonHandler))
           
                   //PRESENT THE MENU
        self.presentViewController(optionMenu, animated: true, completion: nil)
        
        
        }