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

callum obrien
seal-mask
.a{fill-rule:evenodd;}techdegree
callum obrien
iOS Development Techdegree Student 2,812 Points
Posted by callum obrien
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callum obrien
iOS Development Techdegree Student 2,812 Points

I do not know why this code isn't working

Can someone help i am not sure what went wrong in my code

structs.swift 
struct Tag {
  let name: String
}

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

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

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

2 Answers

Steve Hunter
Steve Hunter
57,712 Points

Hi Callum,

A few things there - but you've done the hard bit!!

First, your description function should return a String not a Stirng. :wink:

Second, the func needs to be inside the curly braces of the struct.

Lastly, in your interpolation, you want to use the name property of the Tag instance called tag. Use dot notation like \(tag.name).

I think that's it ... I'll quickly check now.

Steve.

Steve Hunter
Steve Hunter
57,712 Points

Hey, no problem! :+1: :smile:

Jeremy Conley
Jeremy Conley
4,791 Points
Jeremy Conley
Jeremy Conley
4,791 Points

So you have a few small errors here. First off in your declaration of the description function you misspelled 'String' as the return type. You also need the description function to be in your Post struct, so you can call it on firstPost. Lastly in you description func, instead of using the 'name' property you need to access it from the 'tag' property you created, 'tag.name'

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()
Steve Hunter
Steve Hunter
57,712 Points

:+1: :smile: