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william fashanu
2,108 Pointswhat is wrong wit my code
We learned about instance methods before. For this task, add an instance method to Post.
Name the method description. It takes no parameters and returns a string that describes the post instance. For example given a title: "iOS Development", author: "Apple", and a tag named "swift", the description would read as follows"
"iOSDevelopment by Apple. Filed under swift"
Once you have an instance method, call it on the firstPost instance and assign the result to a constant named postDescription
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)" } }
let firstPost = Post(title: "lol", author: "loll", tag: Tag(name: "will")) let postDescription = firstPost.description()
2 Answers
Ryan Maneo
4,342 PointsVery close! You forgot to add \ before (title), (author), and (tag) respectively. Also, I personally wouldn't type all of the code on a single line like you did. It's MUCH easier to read separated onto different lines.
Your code:
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)" } }
let firstPost = Post(title: "lol", author: "loll", tag: Tag(name: "will")) let postDescription = firstPost.description()
My code:
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: "lol", author: "lol", tag: Tag(name: "Swift"))
let postDescription = firstPost.description()
// You also forgot to use \(tag.name) instead of \(tag), that way you are returning the name rather than the tag constant.
william fashanu
2,108 Pointsthank you, it works now. why would it be tag.name and not Tag.name ?
Ryan Maneo
4,342 PointsBecause "tag" is an instance of Post. Where as "Tag" is a custom type, and holds no value by itself. Good luck! :)