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iOS Swift Functions and Optionals Parameters and Tuples Tuples

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. :)

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

          return (greeting ,language)

var result = greeting("Tom") 

1 Answer

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

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.

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

Thanks for the help anyway.