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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Zachary Goforth
Zachary Goforth
748 Points
Posted by Zachary Goforth
Zachary Goforth
748 Points

On Challenge Task 3 how do I use the println function to print the value 'language' for the 'result' tuple?

I know this is a easy task, I'm just having trouble finding an answer.

Here is my guess for the 3rd task... println(result: language)

Obviously I'm using the println function but it's the second part of the 3rd task that i don't understand. Any help is appreciated. :)

tuples.swift 
func greeting(person: String) -> (greeting : String,language : String ){
       let language = "English"
         let greeting = "Hello \(person)"

          return (greeting ,language)
           }

var result = greeting("Tom")

1 Answer

Rasmus Rønholt
PLUS
Rasmus Rønholt
Courses Plus Student 17,358 Points
Rasmus Rønholt
Rasmus Rønholt
Courses Plus Student 17,358 Points

When returning tuples with named elements, you can access them using dot notation.

So your print statement should be println(result.language)

Every time you put a colon somewhere it is because you are declaring something - typically the type of a variable/constant/argument (like language: String) - you never use colon to access the values.

Zachary Goforth
Zachary Goforth
748 Points
Zachary Goforth
Zachary Goforth
748 Points

I used the println(result.language) and this error showed up...

Bummer! You printed "Hello Tom". It should have printed "English".

I haven't changed my code, I just added the println function.

Rasmus Rønholt
Rasmus Rønholt
Courses Plus Student 17,358 Points

Well that's unfortunate - but I can tell you, that the code is correct. There are only two possible scenarios:

  1. The code challenge engine doesn't know good code when it sees it (I'm obviously joking a bit, but it does behave strangely from time to time)
  2. You actually DID change your code, just a little, and the order of the elements in your return statement doesn't match your definition
Zachary Goforth
Zachary Goforth
748 Points
Zachary Goforth
Zachary Goforth
748 Points

Thanks for the help anyway.