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Creating an Interactive Quiz App with JavaScript: Step-by-Step Guide

· 4 min read
CSC EDUCATION

"Creating an Interactive Quiz App with JavaScript: Step-by-Step Guide"

Introduction​

Creating a quiz app is a great way to engage users and test their knowledge on various topics.

In this blog , we'll walk you through the process of building a basic quiz app using HTML, CSS, and JavaScript.

You'll learn how to structure the quiz, display questions and options, track user answers, and provide feedback.

Suggested Tutorials 📑:​

Let's start by creating a basic HTML page with a title and a button to start the quiz.

1. Create a basic HTML page​


<!DOCTYPE html>
<html>
<head>
  <title>Quiz App</title>
  <link rel="stylesheet" href="styles.css">
</head>
<body>
  <div id="quiz-container">
    <h1 id="question">Question goes here</h1>
    <div id="options">
      <button class="option">Option 1</button>
      <button class="option">Option 2</button>
      <button class="option">Option 3</button>
      <button class="option">Option 4</button>
    </div>
    <button id="next-button">Next Question</button>
  </div>
  <script src="script.js"></script>
</body>
</html>

2. CSS Styling​

Create a styles.css file to style your quiz app.


body {
  margin: 0;
  font-family: Arial, sans-serif;
}

#quiz-container {
  max-width: 600px;
  margin: 50px auto;
  padding: 20px;
  border: 1px solid #ddd;
  background-color: #f9f9f9;
  text-align: center;
}

#question {
  margin-bottom: 20px;
}

.option {
  display: block;
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: 1px solid #ddd;
  background-color: #fff;
  cursor: pointer;
}

.option:hover {
  background-color: #f5f5f5;
}

#next-button {
  display: none;
  padding: 10px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  cursor: pointer;
}

#next-button:hover {
  background-color: #0056b3;
}

Suggested Tutorials 📑:​

3. JavaScript Logic​

Create a script.js file to add the JavaScript logic to your quiz app.


const questionElement = document.getElementById('question');
const optionsContainer = document.getElementById('options');
const nextButton = document.getElementById('next-button');

let currentQuestionIndex = 0;
let userScore = 0;

const questions = [
  {
    question: 'What is the capital of France?',
    options: ['Paris', 'London', 'Berlin', 'Madrid'],
    correctIndex: 0
  },
  // Add more questions
];

function showQuestion() {
  const question = questions[currentQuestionIndex];
  questionElement.textContent = question.question;

  optionsContainer.innerHTML = '';
  question.options.forEach((option, index) => {
    const button = document.createElement('button');
    button.textContent = option;
    button.classList.add('option');
    button.addEventListener('click', () => checkAnswer(index));
    optionsContainer.appendChild(button);
  });

  nextButton.style.display = 'none';
}

function checkAnswer(selectedIndex) {
  const question = questions[currentQuestionIndex];
  if (selectedIndex === question.correctIndex) {
    userScore++;
  }

  currentQuestionIndex++;
  if (currentQuestionIndex < questions.length) {
    showQuestion();
  } else {
    showResults();
  }
}

function showResults() {
  questionElement.textContent = `You scored ${userScore} out of ${questions.length}!`;
  optionsContainer.innerHTML = '';
  nextButton.style.display = 'none';
}

showQuestion(); // Initial question display


Now you have a basic quiz app that displays questions and options, tracks user answers, and provides feedback. You can add more questions to the questions array to create a longer quiz.

Suggested Tutorials 📑:​

Conclusion​

Congratulations! 🙌 You've successfully built a basic quiz app using HTML, CSS, and JavaScript. Users can now answer multiple-choice questions and receive immediate feedback on their answers. Feel free to customize the questions, add more features, and improve the design to match your preferences. This project provides a solid foundation for creating more sophisticated quiz applications with additional features like timers, different question types, and more.

Happy coding! 😃