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iOS Swift Functions and Optionals Functions Function Return Types

Ihosvany Diaz
Ihosvany Diaz
2,946 Points

Challenge task 1 of 1 Modify the definition of the function named greeting to return a String and replace the println st

Hi everyone, I'm staking o this challenge and really don understand what do I have to do here is the function:

func greeting(person: String) {
  println("Hello \(person)")
}

Thank

3 Answers

Chris Shaw
Chris Shaw
26,662 Points

Hi Ihosvany,

The challenge is simply asking for you to remove the println function and replace with with a return statement then assign the return type as a String, all of this was covered off in the previous video so I recommend you watch over it again just in case you missed anything the first time round.

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

Remember, to make a function return a specific value you use the arrow following argument assignments. Next, get rid of println(). The challenge wants what println() was returning to be returned by the function as a obtainabe value.

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

So now if I wanted, I can create a variable to hold the value returned by my greeting function:

var myFriendliness = greeting("Ihosvany Diaz");
myFriendliness //will return "Hello Ihosvany Diaz"
Ihosvany Diaz
Ihosvany Diaz
2,946 Points

Thank so much Chris Upjohn and cuckoo for your help this is the last challenge before complete the course