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iOS Swift Functions and Optionals Parameters and Tuples Tuples

Alex Wride
Alex Wride
4,420 Points
Posted by Alex Wride
Alex Wride
4,420 Points

I don't understand the error I'm getting for Challenge task 2 of 3 on the Tuple section.

I keep getting the error, "You need assign the return value of the 'greeting' function to 'result'" What am i doing wrong? I've tried adjusting the syntax but i can't quite figure it out.

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

    return (greeting, language)
}
var result = greeting(greeting: "Tom", language: "English")

1 Answer

Richard Lu
Richard Lu
20,185 Points
Richard Lu
Richard Lu
20,185 Points

So what you have is a function named greeting with 1 parameter named person. When you use your function, you pass it 2 arguments.

in order to stop the compiler error, what you want to do is change the code to this

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

    return (greeting, language)
}

var result = greeting("Tom")

This might fix the problem. Let me know how it goes :)

Alex Wride
Alex Wride
4,420 Points
Alex Wride
Alex Wride
4,420 Points

That worked perfectly, thanks.