How to pass value from 2d array with prepareForSegue

Question

I have a array like this in a tableView:

var array: [[String]] = [["Apples", "Bananas", "Oranges"], ["Round", "Curved", "Round"]]

I would like to pass on the name of the cell when the cell is pressed. With a standard array I would do this:

 let InfoSegueIdentifier = "ToInfoSegue"

    override func prepare(for segue: UIStoryboardSegue, sender: Any?)
    {
        if segue.identifier == InfoSegueIdentifier
        {
            let destination = segue.destination as! InfoViewController
            let arrayIndex = tableView.indexPathForSelectedRow?.row
            destination.name = nameArray[arrayIndex!]
          }
    }    

And in the next ViewController (InfoViewController)

var name = String()


    override func viewDidLoad() {
        super.viewDidLoad()
nameLabel.text = name
    }    

Error: "Cannot assign value of type '[String]' to type 'String'"

Answer 1

Change this part of code

if segue.identifier == InfoSegueIdentifier
{
     let destination = segue.destination as! InfoViewController
     let arrayIndex = tableView.indexPathForSelectedRow?.row
     destination.name = nameArray[arrayIndex!]
}

To

if segue.identifier == InfoSegueIdentifier
{
   let destination = segue.destination as! InfoViewController
   let arrayIndexRow = tableView.indexPathForSelectedRow?.row
   let arrayIndexSection = tableView.indexPathForSelectedRow?.section
   destination.name = nameArray[arrayIndexSection!][arrayIndexRow!]
 }

Try and share the results.

Reason For crash: In your first viewController you have [[String]] which is the datasource for your section. Now, when you try to get the object from this array it will returns you [String] and in your destination viewController you have the object of type String. and while assigning [String] to String it cause the crash with type mismatch. So, what above code does is, it will take first [String] from the arrayIndexSection and then the String from arrayIndexRow and thus pass a String object to destination.

Hope it clears.