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iOS Functions in Swift Adding Power to Functions Returning Complex Values

I am stuck

Here is the question: In this challenge, we have the following geographical coordinates

Eiffel Tower - lat: 48.8582, lon: 2.2945 Great Pyramid - lat: 29.9792, lon: 31.1344 Sydney Opera House - lat: 33.8587, lon: 151.2140

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()

1 Answer

Jeff McDivitt
Jeff McDivitt
23,970 Points

Hi Joshua - You want to first declare a function named coordinates (which I see that you have). The function takes a single parameter of type string with external name for and local name of location. You place the for before location because it is the external name. You then need to create a switch statement that will switch output depending on the case selected. Finally you need to create a default case at the end of the switch statement

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)

    }

}