Tips for presenting a quiz in a random order and preventing duplicate questions in a React Native app

Hello everyone, I am working on creating a Quiz app in React Native that displays questions randomly without any duplication. So far, I have managed to display the Quiz questions randomly, but I'm stuck on preventing duplicates. This is a new learning experience for me with React Native and I would appreciate any help or ideas on how to solve this issue. I am using a Macbook Pro, Visual Code Studio, and React Native.

Below is the code snippet:

export function App() {

 const questions = [

  {
   questionText: "city",
  answerOptions: [
  { answerText: "canada", isCorrect: false },
  { answerText: "USA", isCorrect: false },
  { answerText: "Napoli", isCorrect: true },
  { answerText: "Brazil", isCorrect: false },
  ],

  },


 {
 questionText: "country",
 answerOptions: [
 { answerText: "Paris", isCorrect: false },
 { answerText: "London", isCorrect: false },
 { answerText: "Spain", isCorrect: true },
 { answerText: "Rome", isCorrect: false },
 ],
 },

 ...

 ];



 const randomQuestions =
 questions[Math.floor(Math.random() * questions.length)];

 return (
 <View style={styles.container}>

<Text style={styles.question}>
{randomQuestions.questionText}
</Text>



<Text style={styles.answer}>
{randomQuestions.answerOptions[0].answerText}
</Text>

<Text style={styles.answer}>
{randomQuestions.answerOptions[1].answerText}
</Text>

<Text style={styles.answer}>
{randomQuestions.answerOptions[2].answerText}
</Text>

<Text style={styles.answer}>
{randomQuestions.answerOptions[3].answerText}
</Text>

</View>
);

};

Answer №1

Eliminate a question from the available options each time it is asked.

If you want to display the questions in a random sequence, simply randomize the order of the question array before starting. Check out example array shuffling

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