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

Tomas Salas
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Tomas Salas
Front End Web Development Techdegree Graduate 37,934 Points
Posted by Tomas Salas
.a{fill-rule:evenodd;}techdegree seal-36
Tomas Salas
Front End Web Development Techdegree Graduate 37,934 Points

For whatever reason I don't match the description specified in the challenge.

Where is my Error to match the description?

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: "iOSDevelopment",author: "Apple", tag: Tag(name: "swift"))

let postDescription = firstPost.description()

2 Answers

David Papandrew
David Papandrew
8,386 Points
David Papandrew
David Papandrew
8,386 Points

Hi Tomas,

You want to access the tag instance's "name" property. so make sure that in the description method, you ask for "tag.name" rather than just "tag".

See below:

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.name)" // <== tag.name is the key item here
  }
}

let firstPost = Post(title: "Some title", author: "Fred G.", tag: Tag(name: "News"))
let postDescription = firstPost.description()