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iOS Swift 2.0 Functions Function Parameters Returning Complex Values

Posted by Anan Almasri
Anan Almasri
Courses Plus Student 3,221 Points

I need help here, I don't how to return this

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

return Alt

}

functions.swift 
// Enter your code below

1 Answer

David Lin
David Lin
35,864 Points
David Lin
David Lin
35,864 Points

Looks like a few problems with your implementation:

  1. You'll need to make Alt a variable ("var") so that you can assign something to it. You've made it a constant with "let".
  2. You'll need to assign Alt to (0,0) for the default case.
  3. You'll also need to return Alt at the end of the function.

Also, you might try returning directly, rather than assigning an intermediate variable ... something like ...

func getTowerCoordinates(name: String) -> (Double, Double) {
  switch name {
    case "Eiffel Tower": return (48.8582, 2.2945)
    ... etc ...
  }
}