Capstone: Interactive Quiz App

1What is an Interactive Quiz App?✨

An interactive quiz app allows users to answer questions, receive immediate feedback, and track their scores. It’s a fun way to apply your JavaScript skills!

2Why Build a Quiz App?🎯

• ✓ Enhances user engagement
• ✓ Solidifies understanding of functions and events
• ✓ Provides a great way to practice DOM manipulation
• ✓ Can be expanded with new features like timers or leaderboards

3Setting Up the Structure💡

Start by creating the HTML layout for your quiz. You’ll need a container for your questions and answer buttons. Here’s a simple structure:

<div id="quiz-container">
  <h2 id="question"></h2>
  <button class="answer-button"></button>
  <button class="answer-button"></button>
</div>

4Loading Questions🚀

Next, you’ll want to load your questions into the app. Store them in an array of objects and use a function to display them:

const questions = [
  { question: "What is 2 + 2?", answers: [4, 3, 5], correct: 0 },
  { question: "What is the capital of France?", answers: ["Paris", "London", "Rome"], correct: 0 }
];

function loadQuestion(index) {
  const currentQuestion = questions[index];
  document.getElementById('question').innerText = currentQuestion.question;
  const buttons = document.querySelectorAll('.answer-button');
  buttons.forEach((button, i) => {
    button.innerText = currentQuestion.answers[i];
    button.onclick = () => checkAnswer(i, currentQuestion.correct);
  });
}

5Tracking Score🔍

To keep track of the user’s score, create a variable and a function to update it when the user answers correctly:

let score = 0;

function checkAnswer(selected, correct) {
  if (selected === correct) {
    score++;
    alert("Correct!");
  } else {
    alert("Wrong answer!");
  }
  loadNextQuestion();
}

6Building the Final Touches⭐

After implementing the quiz logic, consider adding features like a restart button, score display, or even a timer. These will make your app more interactive and fun!

• Congratulations on Completing Your Quiz App!
• You’ve now combined your JavaScript skills to create a fully functioning interactive quiz app. Keep experimenting with new features and have fun coding!