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iOS Functions in Swift Adding Power to Functions Returning Complex Values

declare a function Declare a function named coordinates that takes a single parameter of type String, with an externa

Declare a function named coordinates that takes a single parameter of type String, with an external name for, a local name of location, and returns a tuple containing two Double values (Note: You do not have to name the return values). For example, if I use your function and pass in the string "Eiffel Tower" as an argument, I should get (48.8582, 2.2945) as the value. If a string is passed in that doesn’t match the set above, return (0,0)

functions.swift
func coordinates(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)

    }
}

3 Answers

Wow, it took longer than I thought but mine was finally accepted with the above correction from Michael Ayoub.

func coordinates(for 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)

    }
}

You would think that teamTreeHouse would use some examples that were covered in the lessons vs having to google search the web.

You didn't add the external name for the function parameter which is "for" so the function should be:

func coordinates(for location: String) -> (Double, Double)

Originally mine would not work because I kept trying "forLocation location." I don't really understand why that didn't work. I thought that was what it meant to name the external name as for.

func coordinates(forLocation location: String) -> (Double, Double) {