Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Object-Oriented Swift 2.0 Complex Data Structures Adding Instance Methods

Posted by Steve Burgos
Steve Burgos
2,759 Points

I am struggling with understanding how to set up a method using strings rather than integers

This is my current code but I am having trouble understanding how to create the method using the string that I have and the structure for that string.

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

    func getFullName ( first: String, last:String) -> [Person]{

    var result: [Person] = first + last

    }
}

1 Answer

jcorum
jcorum
71,830 Points

The function doesn't need any parameters because it has access to the struct's member variables. It does need to show that it returns a String, so you need -> String after the function name. Inside the function you need to return a String. And in that String you use String interpolation to include the values of the two member variables. 

struct Person {
    let firstName: String
    let lastName: String

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

let aPerson = Person(firstName: "Steve", lastName: "Burgos")  //use the Person struct to create a Person object
let fullName = aPerson.getFullName()  //use the Person object to call the getFullName() method