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

Ted Hayali
Ted Hayali
5,403 Points
Posted by Ted Hayali
Ted Hayali
5,403 Points

description method problem

struct Tag { let name: String }

struct Post {

let title: String let author: String let tag: Tag let tagg = Tag(name: "Swift") func description() ->String { var result: String = "(title) by (author). Filed under (tagg)"

return result } }

let tagg = Tag(name: "Swift")

let firstPost = Post(title: "ted" , author: "maker" , tag: tagg)

let postDescription = firstPost.description()

structs.swift 
struct Tag {
    let name: String
}

struct Post {

 let title: String
 let author: String
 let tag: Tag
 let tagg = Tag(name: "Swift")
 func description() ->String {
    var result: String = "\(title) by \(author). Filed under \(tagg)" 


 return result
 }
}

let tagg = Tag(name: "Swift")

let firstPost = Post(title: "ted" , author: "maker" ,  tag: tagg)

let postDescription = firstPost.description()

1 Answer

Rodrigo Chousal
Rodrigo Chousal
16,009 Points
Rodrigo Chousal
Rodrigo Chousal
16,009 Points

Hey Ted,

You shouldn't create instance variables of type Tag and then insert those variables into the description method for Post. It is not needed, and there is a better way to achieve the same purpose. Moreover, you need to access tagg.name to get a string back to use in your result variable. Otherwise, the compiler would try to convert the Tag object into a string, which it is not.

Try something more along the lines of this, instead:

struct Tag {
    let name: String
}

struct Post {
  var title: String
  var author: String
  var tag: Tag

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

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

Hope this helps, Rodrigo