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iOS

Posted by Carmen Ibarcena
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Carmen Ibarcena
iOS Development Techdegree Student 8,296 Points

Object-Oriented swift 2.0 challenge 2 of 2

Hello, can someone tell me what is wrong with my code! thank you so much 

struct Person {
    let firstName: String
    let lastName: String

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

}

let aPerson = Person.init(firstName: "Jenifer", lastName: "Fuentes")
let fullName = aPerson.getFullName()
Anton Melekh
Anton Melekh
2,729 Points

Seems like everything is OK. However Treehouse, I guess, need the code to be written this way:

class Person {
    let firstName: String
    let lastName: String

    init(firstName: String, lastName: String) {
        self.firstName = firstName
        self.lastName = lastName
    }

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

let somePerson = Person(firstName: "Jenifer", lastName: "Fuentes")
somePerson.getFullName()

3 Answers

Caleb Kleveter
Caleb Kleveter
Treehouse Moderator 37,862 Points

Get rid of the .init. in front of Person and the parentheses around the return value of the method.

struct Person {
    let firstName: String
    let lastName: String

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

}

let aPerson = Person(firstName: "Jenifer", lastName: "Fuentes")
let fullName = aPerson.getFullName()
Andrew Taylor
Andrew Taylor
11,500 Points

@Caleb, how come you don't need to init firstName and lastName? Is that because it is a struct?

Caleb Kleveter
Caleb Kleveter
Treehouse Moderator 37,862 Points

Yes, exactly. Structs already come with memberwise initializers, meaning that there is a pre-build initializer for the Struct.

Andrew Taylor
Andrew Taylor
11,500 Points

Ahh ok, it's just in the documentation I saw a struct initialised.

https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/Initialization.html#//apple_ref/doc/uid/TP40014097-CH18-ID203

struct Fahrenheit {
    var temperature: Double
    init() {
        temperature = 32.0
    }
}
var f = Fahrenheit()
print("The default temperature is \(f.temperature)° Fahrenheit")
// Prints "The default temperature is 32.0° Fahrenheit"
Jessica Hunter
.a{fill-rule:evenodd;}techdegree
Jessica Hunter
Full Stack JavaScript Techdegree Student 13,097 Points

Caleb Kleveter I have this as my answer as well but it keeps saying: "Bummer! The value being assigned to fullName must be the result of calling the instance method getFullName()" even though this is exactly what I've done. Has this happened to anyone else?

Nick Sieber
.a{fill-rule:evenodd;}techdegree
Nick Sieber
iOS Development Techdegree Student 3,121 Points

I have this exact answer and I still receive the error: "Bummer! The value being assigned to fullName must be the result of calling the instance method getFullName()"

Quite frustrating : \

Carmen Ibarcena
seal-mask
.a{fill-rule:evenodd;}techdegree
Carmen Ibarcena
iOS Development Techdegree Student 8,296 Points
Carmen Ibarcena
.a{fill-rule:evenodd;}techdegree
Carmen Ibarcena
iOS Development Techdegree Student 8,296 Points

Thank you guys =)

Jessica Hunter
seal-mask
.a{fill-rule:evenodd;}techdegree
Jessica Hunter
Full Stack JavaScript Techdegree Student 13,097 Points
Jessica Hunter
.a{fill-rule:evenodd;}techdegree
Jessica Hunter
Full Stack JavaScript Techdegree Student 13,097 Points

Nevermind, I accidentally placed parenthesis around my return type. That's what was causing the error.