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

Reagen Rahardjo
Reagen Rahardjo
3,770 Points

Got correct result on Xcode but wrong on the challenge pls help

Hi,

can anyone help me review the code? im getting error but on the xcode the result is correct

Thank you in advance

structs.swift
struct Tag {
    let name: String
}

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

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



let firstPost = Post(title: "iOSDevelopment", author: "Apple", tag: "Swift")

let postDescription = firstPost.description()

1 Answer

Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey Reagen,

good job, you almost got it right! The only problem in your code is that the stored property tag in the Post struct has the type Tag and not String . That means that you have to give it this type and also when you create an instance of Post in firstPost note that you have to create an instance of Tag for the tag parameter and pass it the name as an argument. Lastly you also have to get the tag's name via dot-notation in the description function by writing tag.name .

Like so:

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: "iOSDevelopment", author: "Apple", tag: Tag(name: "Swift"))
let postDescription = firstPost.description()

I hope that helps, good luck! :)