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iOS Swift 2.0 Functions Function Parameters Returning Complex Values

shane reichefeld
PLUS
shane reichefeld
Courses Plus Student 2,232 Points
Posted by shane reichefeld
shane reichefeld
Courses Plus Student 2,232 Points

how would i fix this one error of the return value

Any help?

functions.swift 
// Enter your code below

let array = ["Eiffel Tower": "(48.8582, 2.2945)", 
  "Great Pyramid": "(29.9792, 31.1344)", 
  "Sydney Opera House": "(33.8587, 1512140)"]

func getTowerCoordinates(String: location) -> (Double, Double) {
  for (key, values) in array {
  switch key {
    case "Eiffel Tower": values
    case "Great Pyramid": values
    case "Sydney Opera House": values 
    default: "(0,0)"
    }
  }
}
Donald Cox
Donald Cox
2,088 Points
Donald Cox
Donald Cox
2,088 Points

What error are you getting exactly?

1 Answer

jcorum
jcorum
71,814 Points

You do not need to create a dictionary (which you name array). That adds complexity they didn't want in this exercise, as you would then need to deal with optionals. You don't ned a loop either. You need to switch on the input variable location. You need to return a tuple for each case. 

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)
    }
}