SOLVED: Day 35 - Edutainment App - Confused about values – 100 Days of SwiftUI

SOLVED: Day 35 - Edutainment App - Confused about values

@arhamsc

Jul '21

I am not able to understand why is actualAnswer different from the asked multiplication. I am a complete beginner to this so i appreciate your reply.

import SwiftUI
struct Questions {
    var text: String
    var question = [Int] ()
    var answer = [Int] ()
    var actualAnswer: String

  init() {
      let questionRight = Int.random(in: 1...12)
      let questionLeft = Int.random(in: 1...12)
      text = "\(questionLeft) * \(questionRight)"
      actualAnswer = "\(questionLeft * questionRight)"
  }

}
struct ContentView: View {
    var showQ = Questions().actualAnswer
    var textQ = Questions().text
//    @State private var leftQ = Questions().questionLeft
//    @State private var rightQ = Questions().questionRight

  var body: some View {
      VStack {
//            Text("\(leftQ)")
//                .padding()
//            Text("\(rightQ)")
//                .padding()
            Text("\(textQ)")
                .padding()
            Text("\(showQ)")
                .padding()
    }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}

@roosterboy HWS+

Jul '21

Because here:

    var showQ = Questions().actualAnswer
    var textQ = Questions().text

You are creating two different instances of Questions instead of using the same instance for showQ and textQ.

Questions() with the parentheses creates a Questions instance.

You should instead do something like this:

    var question = Questions()

and then in the body you can do:

            Text(question.text)
                .padding()
            Text(question.actualAnswer)
                .padding()

That way text and actualAnswer come from the same Questions instance.

@arhamsc

Aug '21

@roosterboy thank you a lot

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