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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 Shikhar Prateek
Shikhar Prateek
13,908 Points

Code working in Playground but not in code challenge editor

When running the code shown below in playground it works correctly struct Tag { let name: String } let abc = Tag(name: "Swift") struct Post { var title: String var author: String var tag: Tag

func description() -> String {
    return "\(title) by \(author).Filed under \(abc.name)"
}

}

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

let postDescription = firstPost.description()

but in treehouse editor it says Make sure the implementation of description matches the directions. Hint: Use String Interpolation.

structs.swift 
struct Tag {
    let name: String
}
let abc = Tag(name: "Swift")
struct Post {
    var title: String
    var author: String
    var tag: Tag

    func description() -> String {
        return "\(title) by \(author).Filed under \(abc.name)"
        // return title + " by " + author + ".Filed under " + abc.name
    }
}

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

let postDescription = firstPost.description()

2 Answers

Eric Hodgins
Eric Hodgins
29,207 Points
Eric Hodgins
Eric Hodgins
29,207 Points

Might just be the space missed after the period before "Filed"? Try ". Filed"....not ".Filed"

Shikhar Prateek
Shikhar Prateek
13,908 Points

Thanks a lot for replying. I tried ". Filed" but still the same error as before. Dunno what's missing.

Eric Hodgins
Eric Hodgins
29,207 Points
Eric Hodgins
Eric Hodgins
29,207 Points

oh I see, I think it's also the way you're printing the tag value. Instead of "abc.name" try "tag.name". abc is acting almost as a global variable. You'll want to only use the Post's variables, especially for a description method. Hope that helps!