Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Swift 2.0 Functions Function Parameters Returning Complex Values

Posted by andrew naeve
andrew naeve
11,503 Points

wrong return type?

I thought that if I wasn't required to name my touple other that Double, Double, that I could just use Double, Double to return. why am I getting an error?

functions.swift 
// Enter your code below
func getTowerCoordinates(location: String) -> (Double, Double) {

    switch location {
    case "Eiffel Tower": (48.8582, 2.2945)
    case "Great Pyramid": (29.9792, 31,1344)
    case "Sydney Opera House": (33.8587, 151.2140)
    default: (0,0)
    }
    return (Double, Double)
}

1 Answer

Holger Liesegang
Holger Liesegang
50,595 Points
Holger Liesegang
Holger Liesegang
50,595 Points

Hi Andrew,

You might want to make use of the return statement like this:

func getTowerCoordinates(location: String) -> (Double, Double) {
   switch location {
      case "Eiffel Tower" : return (48.8582, 2.2945)
      case "Great Pyramid": return (29.9792, 31.1344)
      case "Sydney Opera House": return (33.8587, 151.2140)
      default: return (0,0)
   }
}