Sorry for being so stuborn

can some one tell me why does not throw any erros but wont compile, ony says "updating took more tahe 5 seconds"

this is a try for the challenge.

import SwiftUI

struct Question {
    let question: String
    let answer: Int
}

struct ShowQuestions: View {
    var question : Question
    @State private var userAnser = ""

    var body: some View{
        Text(question.question)
        TextField("0", text: $userAnser)
            .frame(width: 100, height: 100)
    }
}

struct QuestionsRow: View {
    @State private var tableOfMult = 1
    @State private var questions = [Question]()

    var body: some View {
        ScrollView {
            ForEach(0 ..< 5, id:\.self) { index in
                HStack {
                    ShowQuestions(question: questions[index])

                }
            }
        }.onAppear(perform: createQuestions)

    }

    func createQuestions(){
        let table = tableOfMult
        var questionset = ""
        var answerset = 0
        for i in (0...12).shuffled(){
            questionset =  "\(table) x \(i)"
            answerset = table * i
            questions.append(Question(question: questionset, answer: answerset))
        }

    }
}

struct QuestionsRow_Previews: PreviewProvider {
    static var previews: some View {
        QuestionsRow()
    }
}

It will not work as the view is produce before the array is made and therefore an empty array so change thing by taking out the func and adding as a computed property.

struct ContentView: View {
    @State private var tableOfMultiple = 1
//    @State private var questions = [Question]()

    var questions: [Question] {
        var newQuestion = [Question]()
        var questionSet = ""
        var answerSet = 0
        for i in (0...12).shuffled() {
            questionSet = "\(tableOfMultiple) x \(i)"
            answerSet = tableOfMultiple * i
            newQuestion.append(Question(question: questionSet, answer: answerSet))
        }

        return newQuestion
    }

    var body: some View {
        ScrollView {
            ForEach(0 ..< 5, id:\.self) { index in
                ShowQuestions(question: questions[index])
            }
        }
//        .onAppear(perform: createQuestions) <- no longer needed
    }
/// Removeed the Function

//    func createQuestions(){
//        let table = tableOfMult
//        var questionset = ""
//        var answerset = 0
//        for i in (0...12).shuffled(){
//            questionset =  "\(table) x \(i)"
//            answerset = table * i
//            questions.append(Question(question: questionset, answer: answerset))
//        }
//    }
}

I have also taking out the HStack and add to the ShowQuestions view

struct ShowQuestions: View {
    var question : Question
    @State private var userAnswer = ""

    var body: some View{
        HStack {
            Text(question.question)
            TextField("0", text: $userAnswer)
                .frame(width: 100, height: 100)
        }
    }
}

i don't understand why it creates firs the view and then call the function?

that was my way of presonalice this code, tu put al the questions the table of multiplication etc

import SwiftUI

struct Question {
    let text: String
    let actualAnswer: String
    var userAnswer = ""

    init(){
        let left = Int.random(in: 1...12)
        let rigth = Int.random(in: 1...10)

        text = "\(left) * \(rigth)"
        actualAnswer = "\(left * rigth)"
    }
}

struct Questionsrow: View {

    var question: Question
    var body: some View{

        HStack{
            Text(question.text)
                .padding([.top, .bottom, .leading])

            ZStack{
                Text("")
                    .padding()
                    .frame(width: 150)
                    .overlay(
                    RoundedRectangle(cornerRadius: 10)
                       .fill(Color.blue)
                )
                Text(question.userAnswer)

            }
     }
        .font(.system(size: 48, weight: .regular, design: .monospaced))
        .foregroundColor(.black)
    }
}

struct ContentView: View {
    @State private var questions = [Question]()

     var body: some View {

         ZStack{
             ForEach(0 ..< questions.count, id: \.self) { index in

                Questionsrow(question: self.questions[index])
                     .offset(x: 0, y: CGFloat(index) * 100)

             }
         }
         .frame(width: 1000, height: 600)
         .onAppear(perform: createQuestion)

     }
     func createQuestion(){

         for _  in 1...50{
             questions.append(Question())
         }
     }
}

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