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iOS Swift Functions and Optionals Functions Function Return Types

Functions and Operations, Code cannot compile

I am trying to use to the function to return a string func greeting(person: String) -> String { return person

}

println("Hello (greeting("Tom"))")

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

}

println("Hello \(greeting("Tom"))")

1 Answer

Chris Shaw
Chris Shaw
26,676 Points

Hi Emmancipate Musemwa,

The code you have is vastly different from what the challenge has asked for, just for clarity the question is as follows.

Modify the definition of the function named greeting to return a String and replace the println statement with a return statement. The function should return a greeting. For example, if you pass in a string "Tom" then the return string would be: "Hello Tom".

What the challenge is asking us to do is alter the function so instead of using the println function to print the string we simply return it, to do this we simply need to replace println along with it's parentheses which will give you the return statement containing the same string that the println function was printing.

See the below.

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

Happy coding!

Thanks a lot now I clearly understand it