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

Michael Williams
PLUS
Michael Williams
Courses Plus Student 8,059 Points

Build a Simple iPhone App w/ Swift code challenge

The challenge is pretty simple, yet I can't for the life of me get things to work. Instead, I keep getting the following error:

Bummer! Make sure the implementation of description matches the directions. Hint: Use string interpolation!

I'm going bonkers, because I am using string interpolation and am pretty sure it's exactly what the instructions said it should be. ?

These are the instructions: For this task, add an instance method to Post.

Name the method 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 tag named "swift", the description would read as follows"

"iOSDevelopment by Apple. Filed under swift"

Once you have an instance method, call it on the firstPost instance and assign the result to a constant named postDescription

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

2 Answers

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! You're doing great, but you're missing one tiny thing. Remember a tag is a struct too. It has a property called name. You are trying to get the string for the entire struct, but you should be getting the tag.name property.

If I replace \(tag) with \(tag.name), your code passes with flying colors! :sparkles: