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

Posted by Fred Lawrence
Fred Lawrence
3,833 Points

Swift Recap Part 1 Task 2 of 2

Add an instance method to Post. Name it description , it takes no parameters and returns a string that describes the post instance. For example, given a title: “iOS Development”, author: “Apple” and a yag named “swift” —> “iOSDevelopment by Apple. Filed by swift”

Once instance method is created, call it on the firstPost instance and assign the result to a constant named postDescption.

structs.swift 
struct Tag {
    let name: String
}

let someTag = Tag(name: "swift")

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: "iOS Development", author: "Apple", tag: someTag )

let postDescription = firstPost.description()
Fred Lawrence
Fred Lawrence
3,833 Points

im stuck dno what to do

2 Answers

Edward Laurenson
Edward Laurenson
4,278 Points
Edward Laurenson
Edward Laurenson
4,278 Points

You've probably answered this by now but I'm gonna give you the answer anyway incase you haven't

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

let postDescription = firstPost.description()

Fred Lawrence
Fred Lawrence
3,833 Points
Fred Lawrence
Fred Lawrence
3,833 Points

@EdwardLaurenson I thought that you had to use "()" notation for string interpolation? Why is yours missing a \ in front of the ()? But thanks for the help!

Edward Laurenson
Edward Laurenson
4,278 Points
Edward Laurenson
Edward Laurenson
4,278 Points

Yea sorry about that. I was missing that