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iOS Swift Functions and Optionals Functions Function Return Types

John Scully
John Scully
1,018 Points
Posted by John Scully
John Scully
1,018 Points

Extra, extra credit?

I put this together as a way of calling multiple functions. What I'm interested in is any feedback to make the code more streamlined as it seems like I'm using a lot of lines:

let salutation = "Hello"

func fullName(firstName: String, lastName: String) -> String {
    return ("\(firstName) \(lastName)")
}

func personalGreeting(fullName: String) ->String {
    return ("\(salutation) \(fullName)")
}

personalGreeting(fullName("Iggy", "Azalea"))

2 Answers

Caleb Kleveter
MOD
Caleb Kleveter
Treehouse Moderator 37,862 Points
Caleb Kleveter
Caleb Kleveter
Treehouse Moderator 37,862 Points

I think a closure would make fewer lines:

func personalGreeting(salutation: String, fullName: (firstName: String, lastName: String) -> (String)) ->String {
    return ("\(salutation) \(fullName)")
}

personalGreeting(salutation: "Hello", firstName:"Iggy", lastName"Azalea")

See if that works.

John Scully
John Scully
1,018 Points
John Scully
John Scully
1,018 Points

hmmm I think I can see what you're getting at here but I can't get it to execute. The function's themselves seem to run fine but I haven't quite understood how to correctly call the functions.

I've tried the following:

personalGreeting(salutation: "Hello", firstName:"Iggy", lastName:"Azalea")
personalGreeting("Hello", ("Iggy" , "Azalea"))
personalGreeting("Hello", "Iggy", "Azalea")
pjc90
pjc90
10,267 Points
pjc90
pjc90
10,267 Points

I would have done it like this..

func personalGreeting(firstName: String, lastName: String) -> String {
    return ("Hello \(firstName) \(lastName)")
}

personalGreeting("Iggy", "Azalea")
John Scully
John Scully
1,018 Points
John Scully
John Scully
1,018 Points

yeah i wanted to call multiple functions rather than just rely string interpolation. I figure it'll be important later. thanks though!