function init() {
  var q_number = 0;
  var csvquestion;

  function calc(n) {
    var tn = csvquestion[n];
    for (var id of ["q1", "q2", "q3", "q4", "q5"]) {
      var anser = document.getElementById(id).value;
      if (anser == tn[id]) {
        document.getElementById('a1').innerHTML = "○";
      }
    }
  }

  fetch("./question.csv").
  then(function(resp) {
    return resp.text().then(function(text) {
      csvquestion = new CSV(text, {
        header: true
      }).parse();
      calc(0);
    });
  });
}
var ans = document.getElementById('ans');
ans.addEventListener('click', init);