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

Jason Choi
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Jason Choi
Front End Web Development Techdegree Graduate 21,159 Points
Posted by Jason Choi
.a{fill-rule:evenodd;}techdegree seal-36
Jason Choi
Front End Web Development Techdegree Graduate 21,159 Points

I can't figure out how to use a switch statements with tuples.

Hello.

I can't figure out how to use a switch statements with tuples. Please help me what part of my code is wrong.

Thank you very much :)

functions.swift 
// Enter your code below

func getTowerCoordinates(location: String) -> (Double, Double) {
  switch coordinates {
    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 (coordinates)
}

1 Answer

Paul Melvin
PLUS
Paul Melvin
Courses Plus Student 4,364 Points
Paul Melvin
Paul Melvin
Courses Plus Student 4,364 Points

hi Jin,

AFAIK you need to pass in the item you want to check against, so here you would pass in the location not coordinates.

You would also need to return in the switch statement rather than outside it...

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)
    }
}

HTH

Paul