swift ? must be followed by a call, member lookup, or subscript

Question

I think I\'m looking at some outdated code:

@IBAction func stockLevelDidChange(sender: AnyObject) {
        if var currentCell = sender as? UIView {
                 


        

Answer 1

The problem is the if let newValue = textfield.text.toInt()? { .. If toInt() returns an Int? then just get rid of the ? there.

Answer 2

In 1.2, toInt is gone. So,

if let newValue = textfield.text.toInt()?

Should be replaced with:

if let newValue:Int? = Int(textField.text!)

Answer 3

Actually the as? are all fine. The problem is this line:

if let id = cell.productId?

Just remove the question mark at the end of that. It makes no sense.