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

Roop P
PLUS
Roop P
Courses Plus Student 6,937 Points
Posted by Roop P
Roop P
Courses Plus Student 6,937 Points

issue with calling a stored property with type struct

how do utilize the stored property of type struct? - "tag" is of type "Tag" which is causing me confusion

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: "iOSDevelopment", author: "Apple", tag: Tag.init(name: "swift"))

let postDescription = firstPost.description()

1 Answer

Matthew Long
Matthew Long
28,407 Points
Matthew Long
Matthew Long
28,407 Points

You're very close with this. If you write your code in Xcode you'd see that postDescription as you have it reads "iOSDevelopment by Apple. Filed under Tag(name: "swift")". This is good indication that you need to add the property name to your tag interpolation:

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: "iOSDevelopment", author: "Apple", tag: Tag(name: "swift"))

let postDescription = firstPost.description()

Also, you don't need that init keyword in your instance of Tag.

Roop P
Roop P
Courses Plus Student 6,937 Points
Roop P
Roop P
Courses Plus Student 6,937 Points

Thanks. I had tried the tag.name earlier but I must have had another error.