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

Posted by Mathieu Monat
Mathieu Monat
1,325 Points

What is the problem with my code here?

The challenge tells me: "Bummer: Make sure the implementation of description matches the directions. Hint: Use string interpolation!"

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 swift = Tag(name: "swift")
let firstPost = Post(title: "Spike Game", author: "Mathieu Monat", tag: swift)
let postDescription = firstPost.description()

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,668 Points

You need to use the name property of tag in your string. Instead of \(tag) try \(tag.name).

Mathieu Monat
Mathieu Monat
1,325 Points

Thank you. I made the change but I am still getting the same error message.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,668 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,668 Points

Strange. I tried the following which only has that change and it passed:

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 swift = Tag(name: "swift")
let firstPost = Post(title: "Spike Game", author: "Mathieu Monat", tag: swift)
let postDescription = firstPost.description()

May be a caching issue?

Mathieu Monat
Mathieu Monat
1,325 Points

Never-mind, it works. Thanks for the help!