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

Himanshu Geed
Himanshu Geed
2,175 Points
Posted by Himanshu Geed
Himanshu Geed
2,175 Points

Not sure what am I doing wrong

This is the message I'm getting: "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

  init(title: String, author: String, tag: Tag) {
    self.title = title
    self.author = author
    self.tag = tag
   }

  func description() -> String {
    let alpha = "\(title) by \(author). Filed under \(tag)"
    return alpha
  }
  }
let firstTag = Tag(name: "swift")
let firstPost = Post(title: "iOS Development", author: "Apple", tag: firstTag)
let postDescription = firstPost.description()

1 Answer

Everton Carneiro
Everton Carneiro
15,994 Points
Everton Carneiro
Everton Carneiro
15,994 Points

Hello mate. When you say ''let tag: Tag'' inside the Post struct, you are creating an instance of Tag, so you need to access the name using "tag.name" inside the method. Also, you don't need to create a constant you can just return the result inside the method and remember, structs creates an initializer under the hood for you, you don't need to create one.

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