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

Ken Gerlinger
Ken Gerlinger
2,898 Points
Posted by Ken Gerlinger
Ken Gerlinger
2,898 Points

why is the stored property "tag" not assigned properly? Please help me out.

returning "tag" doesn't work. Why?

structs.swift 
struct Tag {
    let name: String
}

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

    func description()->String {

        return "\(title), \(author), \(tag)"
        }
    }

let Hashtag = Tag(name:"Denis")

let firstPost = Post( title:"Happy Days",author:"Peter", tag: Hashtag )

let postDescription = Post.description(firstPost)

1 Answer

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

Hi Ken,

You want to output the name property of the Tag instance which is called tag. Chain name onto your tag using dot notation.

Also, description takes no parameters and should be called on the instance of Post which is called firstPost. Again, use dot notation on firstPost to call .description() on it - assign the returned string from that into postDescription.

Lastly, I think your output string needs some work - it needs to match the string in the challenge, i.e. "\(title) by \(author). Filed under \(tag.name)."

Steve.

P.S. you can create the Tag instance in your call to the Post init method:

let firstPost = Post(title: "Happy Days", author: "Peter", tag: Tag(name: "Denis"))