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iOS Build a Simple iPhone App with Swift Getting Started with iOS Development Swift Recap Part 1

Guy Tam
Guy Tam
3,221 Points
Posted by Guy Tam
Guy Tam
3,221 Points

Issue assigning the result of a method to a constant

Hi,

I'm fairly certain that my code is correct, but may be missing something very obvious. I've tried a few different thing.

Does this look correct to you:

struct Tag { let name: String }

struct Post { let title: String let author: String let tag: Tag

func description() -> (String) {
    let descriptionString = "\(self.title) by \(self.author). Filed under \(self.tag.name)"

    return descriptionString
}

}

let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "swift"))

let postDescription = firstPost.description()

I keep getting the error "Bummer! Make sure you are calling the description method and assigning it to the postDescription constant"

Is there something I'm missing?

Thanks in advance!

structs.swift 
struct Tag {
    let name: String
}

struct Post {
    let title: String
    let author: String
    let tag: Tag

    func description() -> (String) {
        let descriptionString = "\(self.title) by \(self.author). Filed under \(self.tag.name)"

        return descriptionString
    }
}


let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "swift"))

let postDescription = firstPost.description()

2 Answers

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

The first error you have is in your method. You do not need to declare a variable, just return a string

struct Tag {
    let name: String
}

struct Post {

    var title: String
    var author: String
    var tag: Tag

    func description() -> String{
        return "\(title) by \(author). Filed under \(tag.name)"
    }


}

let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "Swift"))

let postDescription = firstPost.description()