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iOS Functions in Swift Adding Power to Functions Returning Complex Values

Posted by Tomasz Czarny
Tomasz Czarny
680 Points

Can't seem to return results without naming what is contained in the tuple? Sorry just a bit confused!

Hey,

Sorry, new to this so I'm sure this is blatantly obvious to everyone except for me... how can I return values within a tuple without using long and lat? if i try to use .1 and .2 to get results it errors out.

Thanks for your help!

T.

functions.swift 
func coordinates(for location:String) -> (long: Double, lat: Double)
{


    switch location {
    case "EiffelTower": (48.8582, 2.2945)
    case "GreatPyramid": (29.9792, 31.1344)
    case "SydneyOperaHouse": (33.8587, 151.2140)
    default: (0.00, 0.00)
    }
return(long, lat)

}

let result = coordinates(for: "EiffelTower")

1 Answer

Jonathan Ruiz
Jonathan Ruiz
2,998 Points
Jonathan Ruiz
Jonathan Ruiz
2,998 Points

Hi Tomasz for the tuple you don't need to give them any names just declare the type in this case they are both doubles. Since we have a function that returns a tuple of two double values after you write what you want to switch on a case statement. You then return the tuple, in your code that was written separately and was not letting it pass. Also in the default case you just need to write (0,0) they give you that default statement in the directions. 

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)
    }
}
Tomasz Czarny
Tomasz Czarny
680 Points

Jonathan,

Thanks very much for your help! Really appreciate it.

Best,

Tomasz