How to access next object in an array by incrementing

let myQuestions = [
    {
        question: "What's 2+2?",
        answers: [
            { text: "4", correct: true },
            { text: "2", correct: false },
            { text: "10", correct: false },
            { text: "1", correct: false },
        ],
    },
    {
        question: "What's 10+10?",
        answers: [
            { text: "20", correct: true },
            { text: "2", correct: false },
            { text: "18", correct: false },
            { text: "0", correct: false },
        ],
    },
];
function startQuiz() {
    container.style.visibility = "visible";
    btn_start.style.visibility = "hidden";
    showQuestion(myQuestions[0]);
}
function showQuestion(questionAndAnswers) {
    const shuffledAnswers = _.shuffle(questionAndAnswers.answers);
    questionTag.innerText = questionAndAnswers.question;
    answerTag[0].innerText = shuffledAnswers[0].text;
    answerTag[1].innerText = shuffledAnswers[1].text;
    answerTag[2].innerText = shuffledAnswers[2].text;
    answerTag[3].innerText = shuffledAnswers[3].text;
}
function nextQuestion() {
    showQuestion(myQuestions[0]);
    
}