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iOS Swift Functions and Optionals Functions Function Return Types

Peter Fuhrey
Peter Fuhrey
2,146 Points
Posted by Peter Fuhrey
Peter Fuhrey
2,146 Points

Confusion about challenge task on functions return types in swift.

I'm new so sorry for anything that doesn't make sense but i'm generally just lost. I've tried everything I could think of can anybody help me?

returns.swift 
func greeting(person: String) -> String {
   let person = greeting(person)
   return person 
}

let person = greeting("Tom") 

println("Hello \(greeting)")

1 Answer

kirkbyo
kirkbyo
15,791 Points
kirkbyo
kirkbyo
15,791 Points

Hey Peter,

The question is asking you to return "Hello (Persons Name)". After creating the function is created, you declared an instance of person instead of recalling the function you can just assign the following string (I called mine welcoming)

let welcoming = "Hello \(person)"

After that You can just simply return welcoming. 

func greeting(person: String) -> String {
    let welcoming = "Hello \(person)"
    return welcoming
}

Think of the person argument as a placeholder for whatever string that you pass to it. So when you declare the greeting function you just pass whatever name you would like. 

func greeting(person: String) -> String {
    let welcoming = "Hello \(person)"
    return welcoming
}

greeting("Ozzie")
// return "Hello Ozzie"
greeting("Peter")
// return "Hello Peter"

I hope I answered your question. If you have another question don't hesitate to ask,

Ozzie