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 2.0 Getting Started with iOS Development Swift Recap Part 1

Confused on the Code Challenge

I don't see what I'm doing wrong when it says "Bummer! Make sure the implementation of description matches the instructions." I can't understand what part of my code is different than what they're describing.

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()

1 Answer

I almost fell for this one too. In your code, "tag" isn't a String, it's a Tag type. The string you are looking for is its "name" property. If you replace "tag" with "tag.name" it should work.

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