const [userAnswers, setUserAnswers] = useState([]);const activeQuestionIndex = userAnswers.length;const quizIsComplete = activeQuestionIndex === QUESTIONS.length;const handleSelectAnswer = useCallback((selectAnswer) => { setUserAnswers((prev) => { return [...prev, selectAnswer]; });}, []);const handleSkipAnswer = useCallback( () => handleSelectAnswer(null), [handleSelectAnswer]); .....