แชร์โค้ดทำแบบทดสอบ web app : script

<script>
var currentQuestion = 0;
var score = 0;
var totalQuestions = questions.length;

var container = document.getElementById('quizContainer');
var questionEl = document.getElementById('question');
var opt1 = document.getElementById('opt1');
var opt2 = document.getElementById('opt2');
var opt3 = document.getElementById('opt3');
var opt4 = document.getElementById('opt4');
var nextButton = document.getElementById('nextButton');
var resultCont = document.getElementById('result');
var resetButton = document.getElementById('reset');

loadQuestion(currentQuestion)

function loadQuestion(questionIndex) {
   var q = questions[questionIndex];
   questionEl.textContent=(questionIndex + 1) + '.'+ q.question;
   opt1.textContent = q.option1;
   opt2.textContent = q.option2;
   opt3.textContent = q.option3;
   opt4.textContent = q.option4;
};
                      
function loadNextQuestion() {
    var selectedOption = document.querySelector('input[type=radio]:checked');
   if(!selectedOption){
        alert('กรุณาเลือกคำตอบของคุณ!');
        return;
    }
    var answer = selectedOption.value;
   if(questions[currentQuestion].answer == answer){
         score += 10;
   }                                  
    selectedOption.checked = false;
    currentQuestion++;
   if(currentQuestion == totalQuestions-1){
        nextButton.textContent = 'ส่งคำตอบ';
    }
   if(currentQuestion == totalQuestions){
        container.style.display = 'none';
        resultCont.style.display = '';
        resultCont.textContent = 'คุณทำได้ :'+ score+ ' คะแนน';
        resetButton.style.display = 'block';
        return;
    }
   loadQuestion(currentQuestion)
   }
function reset() {
window.top.location="https://script.google.com/macros/s/AKfycbxBu_eLlQEa7LqP1Tct8XVC9-03Sfa4mrm9ubAhSZGepU_jJmBLz86xc-Qj_WOfLkHe/exec"
        }
</script>
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