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

The value assigned to postDescription must be a String

if it's not a string what is it then?

structs.swift
struct Tag {
    let name: String
}
struct Post {
    var title: String
    var author: String
    var tag: Tag

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

2 Answers

David Lin
David Lin
35,864 Points

Try this:

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:"IOS Development", author:"Apple", tag:Tag(name:"Swift"))
let postDescription = firstPost.description()

thks