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iOS Build a Simple iPhone App with Swift 2.0 Getting Started with iOS Development Swift Recap Part 1

Vinalt Corp
PLUS
Vinalt Corp
Courses Plus Student 428 Points
Posted by Vinalt Corp
Vinalt Corp
Courses Plus Student 428 Points

What's wrong here?

struct Tag { let name: String }

struct Post { let title: String let author: String let tag = Tag(name: "IOS")

func description() -> String { return "(self.title) by (self.author). Filed under (self.tag)" } }

let firstPost = Post(title: "Make a struct", author: "Not me") let postDescription = firstPost.description()

structs.swift 
struct Tag {
    let name: String
}

struct Post {
  let title: String
  let author: String
  let tag = Tag(name: "IOS")

  func description() -> String {
    return "\(self.title) by \(self.author). Filed under \(self.tag)"
  }
}

let firstPost = Post(title: "Make a struct", author: "Not me")
let postDescription = firstPost.description()

1 Answer

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

You are on target, except that the tag stored property's type is Tag, not String. There are several ways to pass in a Tag object rather than a String, and to get the tag.name, which is a String, to appear in the function's return. Here's one way:

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()

Since self is optional where you have it I left it out. What is usually not optional is that if the challenge asks for specific text, like Filed under swift, you probably should not ignore it. In fact, I've found it rather picky about things like that.