SwiftBeta

var myVar: Int? = 42
let myUnwrappedVar = myVar!

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class Animal {}
class Dog: Animal {}

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var myVar: Int? = nil

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let condition = true
if condition {
    print("True")
}

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@State private var scale: CGFloat = 1

func animateScale() {
  scale = 2
  // ¿Qué método va aquí?
}

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struct ParentView: View {
  @State private var myState: MyType
  var body: some View {
    ChildView(myState: $myState)
  }
}

// ¿Qué sintaxis va en ChildView?

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class MyViewModel: ObservableObject {
  @Published var myProperty: String?
  func updateProperty() {
    myProperty = "New Value"
    // ¿Qué método va aquí?
  }
}

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func sumOfSquares(a: Int, b: Int) -> Int {
    return a * a + b * b
}

SwiftBeta

print(Int("42"))

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func filterNumbers(array: [Int], isEven: Bool) -> [Int] {
    return array.filter { isEven ? ($0 % 2 == 0) : ($0 % 2 != 0) }
}

let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
let result = filterNumbers(array: numbers, isEven: true)