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SOLVED: Optional chaining test question 6/12 has wrong answer

Forums > 100 Days of Swift
@furl  

let shoppingList = ["eggs", "tomatoes", "grapes"]
let firstItem = shoppingList.first?.appending(" are on my shopping list")

Oops – that's not correct. This code is valid Swift.

There is no such method "appending"

3      

@guseulalio  

Actually, appending is a method of NSString. If you import Foundation the code will work fine. No need to change the code, NSString methods are bridged through Swift's String.

3      

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