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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Adam Short
Adam Short
11,153 Points
Posted by Adam Short
Adam Short
11,153 Points

Hello, this challenge doesn't seem to be working. I have created some code that works in Xcode, but it won't accept it.

So I have created this: func greeting(person: String) -> (String, String) {

let GreetingTuple = (greeting: "Hello, \(person)", language: "English")
return GreetingTuple

}

This seems to fulfill all the requirements: It creates a tuple with both greeting and language, and returns them both in a single tuple. The code works fine in Xcode, but this challenge won't accept it. Why is that? Is it because I am initializing the names upon creation of the tuple (I tinkered with the code until I realized you could do this because its more compact.) and we haven't officially learnt that yet?

tuples.swift 
func greeting(person: String) -> (String, String) {

  let GreetingTuple = (greeting: "Hello, \(person)", language: "English")
    return GreetingTuple
}

2 Answers

Ethan Peacock
Ethan Peacock
30 Points
Ethan Peacock
Ethan Peacock
30 Points

Hey it's not accepting your code because you aren't assigning the names it is asking for in the tuple that the function is supposed to return. You have -> (String, String) but you need to assign them the names in the challenge so it should be (greeting: String, language: String) leave the constants in the function and adjust what you are returning to also be a tuple so you should return (greeting, language) at the bottom of your function. It confused me too because of the redeclaration of greeting to so many different things but heres code that should complete the challenge, hope this Helps!

Ethan

func greeting(person: String) -> (greeting: String, language: String) {

    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)

}
Adam Short
Adam Short
11,153 Points
Adam Short
Adam Short
11,153 Points

Is the outcome different to mine? If so, what is the difference of outcome?

Ethan Peacock
Ethan Peacock
30 Points
Ethan Peacock
Ethan Peacock
30 Points

Nope, yours still would output (.0 "Hello, (person's name given when calling function)", .1 "English")

Its set up right just like my first attempt but the way the challenge grades your attempt i guess is very picky so you have to do it specifically the way it asks. Your code works the same, it just couldn't be graded because when the challenge was specifically looking for a name for the return type where your tuple was just (String, String), it wanted (greeting: String, language: String)

the only difference would be that in the example i showed you, when calling the function it shows you the parameter and their names instead of just (String, String)

copy the example code into a playground and try to call the function and you will see what I mean