How do I prevent my text from displaying Optional() in the Swift interpolation?

Question

How do I prevent my text from displaying Optional() in the Swift interpolation?

My text displaying is :

---You can only switch properties once all images from Op

Answer 1

Swift is doing this because you provided an optional string, not a string. To solve it you need to unwrap the optional.

You can either use ! to unwrap an optional string, such as:

messageText.text = "You can only switch properties once all images\(propertyNameStr!) have finished uploading."

Or you can use a if statement to unwrap the optional.

if let nameString = propertyNameStr {
    messageText.text = "You can only switch properties once all images\(nameString) have finished uploading."
}