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

Posted by Tim Nunn
Tim Nunn
1,941 Points

postDescription Problem

Any ideas on this one? I am unsure what's missing.

structs.swift 
struct Tag {
    let name: String
}

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

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

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

let postDescription = firstPost.description()

2 Answers

Jaroslaw Adamowicz
Jaroslaw Adamowicz
11,634 Points
Jaroslaw Adamowicz
Jaroslaw Adamowicz
11,634 Points

Hi,

the problem is with your tag.

You see, in your class tag is type of Tag. And Tag is not a String!

But it has string inside called name. So you can use dot notation to get this name and have what you need.

Instead:

tag

you need to use:

tag.name

So this line with description will look like:

    return "\(title) by \(author). Filed under \(tag.name)"

Fix just that and you are good to go!

Cheers!

BR, Jarek

Tim Nunn
Tim Nunn
1,941 Points
Tim Nunn
Tim Nunn
1,941 Points

Of course! That did the trick. Thanks