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iOS Object-Oriented Swift Complex Data Structures Adding Instance Methods

Posted by Fredrick Barrett
Fredrick Barrett
2,068 Points

My code doesn't work

Hi, I think I'm doing this right, but I keep getting the error that my code cannot be compiled. Am I calling the instance method correctly?

structs.swift 
struct Person {
    let firstName: String
    let lastName: String

    func fullName() -> String {

    let aPerson = Person(firstName: "Fredrick", lastName: "Barrett")

    }

    let myFullName = Person.fullName()
}

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi Frederick,

Your fullName method needs to return the full name of the instance. Inside the method, interpolate both member constants into one string, separated by a space.

Then, outside of the class, create aPerson, as you have done. Then call fullName on aPerson and assign the result of that into myFullName.

Make sense?

Steve.

Fredrick Barrett
Fredrick Barrett
2,068 Points

still having trouble with it.

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Frederick,

The func puts the two names together and returns them. I'll use interpolation for this but you could use concatenation, with a space. 

func fullName() -> String {
  return "\(firstName) \(lastName)"
}

That sits inside the class. Outside the class, create a new instance of Person. You've done this already:

let aPerson = Person(firstName: "Fredrick", lastName: "Barrett")

Lastly, call the func on aPerson:

let myFullName = aPerson.fullName()

I hope that helps,

Steve.

Fredrick Barrett
Fredrick Barrett
2,068 Points

Thank you