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

Jeremy Lyles
Jeremy Lyles
3,886 Points

Am I missing something on this challenge?

I've tried to match the instructions as close as possible, and the editor isn't returning errors on what's being output. Am I missing anything here?

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

andren
andren
28,465 Points

Your code is extremely close, but you are indeed missing one thing. Well technically two things but the second issue is more about the challenge checker being spectacularly picky, rather than an issue with your code.

In your description string:

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

You reference the tag variable, but that contains the Tag struct itself, not just the name property. In order to actually pull out the name property from the struct you need to use dot notation like this tag.name.

You also have a period at the end of the description, this is an issue since the example string the challenge showed you does not end with a period. As mentioned the challenge checker really can be extremely picky at times.

If you fix those two issues like this:

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)" 
  }
}

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

Then your code will pass.