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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Posted by polatutkukayrak
polatutkukayrak
1,848 Points

Bummer! Your `result` variable has the wrong value in it. Check the task instructions again.

I did the first step right and the second step basically asks me to: "Create a variable named result and assign it the tuple returned from function greeting. (Note: pass the string "Tom" to the greeting function.)"

So I created a new variable called "result" and assigned it to the greeting function which has the String "Tom" as an input. Since the variable "a" has two values in it, it returns two String values as the function wants ?

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

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

    var a = ("\(language)", "\(greeting)")

    return a 

}

var result = greeting(person: "Tom")

3 Answers

Marlon Henry
Marlon Henry
6,885 Points

var result = greeting(person: "Tom") is only returning Greeting and the param that you had in it.

While (greeting, language) is returning greeting and language (and of course everything within those two)

Marlon Henry
Marlon Henry
6,885 Points
Marlon Henry
Marlon Henry
6,885 Points 
func greeting(person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}
polatutkukayrak
polatutkukayrak
1,848 Points

Yes it worked, thank you so much but I still don't get why my approach didn't work ?

When I put both codes in the playground, they both return the same result.

[Images of both codes in the playground] (Macintosh HD/Users/Utku/Desktop/Screen Shot 2015-07-07 at 3.16.19 PM.png "Screenshot")

Marlon Henry
Marlon Henry
6,885 Points
Marlon Henry
Marlon Henry
6,885 Points

I don't know what the question is asking for but, you are only passing in one param but you asking to return two.

polatutkukayrak
polatutkukayrak
1,848 Points

I did the first step right and the second step basically asks me to: "Create a variable named result and assign it the tuple returned from function greeting. (Note: pass the string "Tom" to the greeting function.)"

So I created a new variable called "result" and assigned it to the greeting function which has the String "Tom" as an input. Since the variable "a" has two values in it, it returns two String values as the function wants ?

PS : I'm sorry, I did edit the question