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

Nay Myo Lwin
Nay Myo Lwin
10,225 Points
Posted by Nay Myo Lwin
Nay Myo Lwin
10,225 Points

code challenge iOS

couldn't pass the test even i have no errors on playground.

also preview didn't show any error. i'm missing anything.

thanks,

structs.swift 
struct Tag {
    let name: String
}
struct Post {
    let title: String
    let author: String
    let tag: Tag
    init(title: String, author: String, tag: String){
        self.title = title
        self.author = author
        self.tag = Tag(name: tag)
    }
    func description() -> String {
        return "\(title) by \(author). Filed under \(tag.name)"
    }

}
let firstPost = Post(title: "iOS Development", author: "Apple", tag: "Swift")
let postDescription = firstPost.description()

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi there,

The tag part isn't quite right. It is of type Tag, not a String. The rest is looking pretty good with some adjustments for that. Try this:

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.name)"
    }
}

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

So, the Tag is created in the constructor for the Post struct. Your solution is interesting; I think the compiler is looking for something precise, though. I like your method but the tests in the challenge will be expecting to pass a Tag object into the Post struct, not a String.

Make sense?

Steve.

Nay Myo Lwin
Nay Myo Lwin
10,225 Points
Nay Myo Lwin
Nay Myo Lwin
10,225 Points

wow that's make a lot more sense than what i was doing.

and yes, i passed the challenge =)

thank you very much

Steve Hunter
Steve Hunter
57,712 Points

No problem - glad to be able to help.

Steve.