What is this question on tuples looking for?

Stone/Anthony -

How did you get task 2 to work? It won't accept it for me. Stuck. Thanks in advance!

Here is the answer:

func greeting(person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}
var result = greeting("Tom")
println(result.language)

task 1 states: Currently our greeting function only returns a single value. Modify it to return both the greeting and the language as a tuple. Make sure to name each item in the tuple: greeting and language. We will print them out in the next task.

so instead of returning a string you need to return a tuple. thats an easy change to make.

remember the return value is defined after the -> so just add (greeting: String, language: String) after the ->.

be sure to name the member values of the tuple inside the return type. their data types will be strings.

then you need to return the actual tuple at the end of the function.

there are 2 constants, language and string, inside the function already. we will use those to make our tuple:

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

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

    return (greeting, language)
}

task 2 states: Create a variable named result and assign it the tuple returned from function greeting. (Note: pass the string "Tom" to the greeting function.)

easy enough. we need to create a new variable and assign it the return value of greeting, passing in "Tom" as the argument

func greeting(person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}

var result = greeting("Tom")

finally task 3 states: Using the println statement, print out the value of the language element from the result tuple

you can access members of a tuple using their name and dot syntax

func greeting(person: String) -> (greeting: String, language: String) {
    let language = "English"
    let greeting = "Hello \(person)"

    return (greeting, language)
}

var result = greeting("Tom")
//used dot syntax to access the language member of result
println(result.language)

HI,

I did the same as Anthony with task 2, here's my code but still stuck on error that the result variable has the wrong value, although I tried it on Xcode Playground and it worked just fine, Please advise guys:

func greeting(person: String) -> (greeting: String, language: String) { let language = "English" let greeting = "Hello (person)"

return (greeting, "Your language is: \(language)")

} var result = greeting("Tom")