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

Error

No compile errors. But says compile errors. Nothing in output.

structs.swift
struct Tag {
    let name: String
}
struct Post {
    var title: String
    var author: String
    var tag: Tag
    init() {
        title = ""
        author = ""
        tag = Tag(name: "")
    }
    init(_title: String, _author: String, _tag: Tag) {
        title = _title
        author = _author
        tag = _tag
    }
    func description() -> String {
        let str = title + " by " + author + ". Filed under " + tag.name;
        return str
    }
}
let firstPost = Post()
let postDescription = firstPost.description()

1 Answer

Thomas. These challenges can be frustrating. Note that you don't need any initializers. structs come with a default one, and that's all that is needed here. You do need, though, to provide the proper parameters when you create tag and post object. Try this:

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

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

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

let postDescription = firstPost.description()