Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Functions in Swift Adding Power to Functions Returning Complex Values

Posted by Shawn O'Brien
Shawn O'Brien
3,153 Points

I am declaring a Parameter of type String but it keeps telling me that I am not, somebody please help

As you can see in my code after

func coordinates

my argument is (location: String)

the error that I'm receiving is that my function argument isn't of type String.

functions.swift 
// Enter your code below
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)
    }
}

1 Answer

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,858 Points
Jason Anders
Jason Anders
Treehouse Moderator 145,858 Points

Hey Shawn,

The error is definitely misleading as you do have a parameter of type String. However, the instruction ask you to

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

In your function, you are missing the external name "for".

Keep coding! :dizzy:

Shawn O'Brien
Shawn O'Brien
3,153 Points

Thank you!