9.Javascript Quizz

function solve() {
    const correctAnswers = [
        'onclick',
        'JSON.stringify()',
        'A programming API for HTML and XML documents'
    ];

    const questions = Array.from(document.querySelectorAll('section.question'));
    const resultsDiv = document.getElementById('results');
    let currentStep = 0;
    let correctCount = 0;

    const allAnswers = document.querySelectorAll('li.quiz-answer');
    for (let answer of allAnswers) {
        answer.addEventListener('click', respondQuestions);
    }

    function respondQuestions(event) {
        const selectedAnswer = event.target.textContent;

        if (selectedAnswer === correctAnswers[currentStep]) {
            correctCount++;
        }

        questions[currentStep].classList.add('hidden');

        currentStep++;

        if (currentStep < questions.length) {
            questions[currentStep].classList.remove('hidden');
        } else {

            let resultText = '';

            if (correctCount === correctAnswers.length) {
                resultText = `You are recognized as top JavaScript fan!`;
            } else {
                let plural = correctCount === 1 ? 'answer' : 'answers';
                resultText = `You have ${correctCount} right ${plural}`;
            }

            resultsDiv.innerHTML = `<h2>${resultText}</h2>`;
        }
    }
}