Swift String Interpolation displaying optional?

Question

When i use the following code and have nameTextField be \"Jeffrey\" (or any other name)

@IBAction func helloWorldAction(nameTextField: UITextField) {

    na         


        

Answer 1

Optionals must be unwrapped. You must check for it or force unwrap as you do. Imagine the optional as a box where you put a value. Before you can access it, you need to put it out.

if let name = nameTextField.text {
    nameLabel.text = "Hello, \(name)"
}