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iOS Swift Functions and Optionals Parameters and Tuples Tuples

dexter foo
dexter foo
8,233 Points
Posted by dexter foo
dexter foo
8,233 Points

Hi I don't understand how the code i wrote is not as what the question is asking

Hi, the question asked for me to assign a variable result to the return tuple from the function greeting.

why is this wrong?

var result = greeting(person: "Tom")

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

    return (greeting, language) 
}

var result = greeting(person: "Tom")

2 Answers

kjvswift93
kjvswift93
13,515 Points
kjvswift93
kjvswift93
13,515 Points

Person is the name of the parameter belonging to the greeting function definition, and is of type string. Meaning you only need to do this.

var result = greeting("Tom")

Since you are not actually creating a new function with a parameter name, but simply assigning a string to a new variable, it doesn't make sense to assign a function with the parameter name "person" of type "Tom" (which is not a data type!) to a new variable.

Brian Patterson
Brian Patterson
19,588 Points
Brian Patterson
Brian Patterson
19,588 Points

So why does it not work? var result = greeting ("Tom")