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

Posted by Brian Bellini
Brian Bellini
3,930 Points

Use of type Tag returning parameter name as well as stored property.

Passed first part of code challenge.

Second part requires me to return a String using interpolation. But returning stored property of tag is "Tag(name: "Swift") not simply "Swift".

I thought it must be a problem with the way I initialised firstPost, but if I remove "Tag(name: "Swift")" and just include "Swift" in a playground I get errors due to it being a String not a Tag type.

I'm sure its something stupid I've done but can't figure it out.

Thanks for the help.

structs.swift 
struct Tag {
  let name: String
}

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

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

let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "Swift"))

let postDescription = firstPost.description()

2 Answers

Aniruddha Shukla
Aniruddha Shukla
2,846 Points
Aniruddha Shukla
Aniruddha Shukla
2,846 Points

In your description string you are interpolating the Tag struct. You need to interpolate the variable name on the tag struct. 

struct Tag {
  let name: String
}

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

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

let firstPost = Post(title: "iOS Development", author: "Apple", tag: Tag(name: "Swift"))

let postDescription = firstPost.description()
Brian Bellini
Brian Bellini
3,930 Points
Brian Bellini
Brian Bellini
3,930 Points

Thanks Aniruddha!!!