Swift error: 'missing return in function'?

Question

I am creating a tic tac toe game and I came upon this error that I don\'t really understand: \"Missing return in a function expected to return \'(location:String, pattern:St

Answer 1

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    let button = DropDownButton()
    switch button {
    case userButton:
        return userButton.dropView.dropDownOptions.count
    case categoryButton:
        return categoryButton.dropView.dropDownOptions.count
    default:
        return 0
    }