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class ArticleFetcher: ObservableObject {
    @Published var article: Article

    init(article: Article){
        self.article = article
        getArticleWithURL(article.id)
    }

    func getArticleWithURL(_ url: String) {
        let linkPreview = SwiftLinkPreview()

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struct ContentView: View {
    @State private var articles = Article.sampleArticles()
    var body: some View {
        List(articles) { article in
            ArticleRow(article: article)
        }
    }
}

struct ArticleRow: View {

ycui1

struct RoundedCorners: Shape {
    var topLeft: CGFloat = 0.0
    var topRight: CGFloat = 0.0
    var bottomLeft: CGFloat = 0.0
    var bottomRight: CGFloat = 0.0

    func path(in rect: CGRect) -> Path {
        var path = Path()

        let width = rect.width

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let tuple0 = () // inferred as Void
let tuple1 = (1, ["three"]) // inferred as (Int, [String])
let tuple2 = (4, true, "Two") // inferred as (Int, Bool, String)
let tuple3 = ("a", tuple1) // inferred as (String, (Int, [String]))

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let jan = (1, "January")
print("Order in a year: \(jan.0)")
// Prints "Order in a year: 1"
print("Month full name: \(jan.1)")
// Prints "Month full name: January"

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let jan = (1, "January")
let (order, fullName) = jan

//alternatively, you can combine the above: let (order, fullName) = (1, "January")

print("Order is \(order)")
//Prints "Order is 1"
print("Full name is \(fullName)")
//Prints "Full name is January"

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let jan = (order: 1, fullName: "January")
print("Order is \(jan.order)")
//Prints "Order is 1"
print("Full name is \(jan.fullName)")
//Prints "Full name is January"

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func describeWeekday(_ weekday: (order: Int, name: String)) {
    print("Day \(weekday.order) in a week is \(weekday.name)")
}
describeWeekday((0, "Sunday"))
// Prints "Day 0 in a week is Sunday"

func retrieveStudentRecord(studentId: Int) -> (name: String, age: Int)? {
    // search the database using the provided student Id, arbitray conditions for demo purpose
    if studentId < 10000 {
        print("Didn't find the student with id: \(studentId)")

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let student: Dictionary<String, Any> = ["name": "John", "age": 14, "gender": "Male"]
for item in student {
    print("For key: \(item.key), the value is \(item.value)")
}
// Prints the following lines:
// For key: name, the value is John
// For key: gender, the value is Male
// For key: age, the value is 14

var numbers: Set = [1, 2, 3, 4, 5]