<<<<<<< HEAD
var quiz = document.getElementById("start");
quiz.addEventListener("click", quiz, false);

function quiz() {
    var answer = prompt("べき乗の演算子はどれでしょう。\n\n" +
			"1: *\n" + "2: **\n" + "3: %", '〇〇');
    if (answer=="2") {
	alert("正解!");
    } else {
	alert("不正解");
    }
}

=======
(() => {
  function Quiz() {
      var count = 5, tmID;
      var infobox = document.getElementById("info");
      var time = document.getElementById("start");
      var atari = document.getElementById("correct");
    function quiz() {
	if (--count == 0) {
	    infobox.innerHTML = "残念、時間切れです。";
	} else {
	    infobox.innerHTML = "あと" + count + "秒";
	    tmID = setTimeout(quiz, 1000);
	}
    }
    function startQuiz() {
	tmID = setTimeout(quiz, 1000);
	time.removeEventListener("click", startQuiz, false);
	atari.addEventListener("click", stopQuiz, false);
    }
    function stopQuiz() {
	clearTimeout(tmID);
	infobox.innerHTML = "おめでとう"
	atari.innerHTML = "正解!!";
	atari.removeEventListener("click", stopQuiz, false);
    }
    time.addEventListener("click", startQuiz, false);
  }
  document.addEventListener("DOMContentLoaded", Quiz, false);
})();
>>>>>>> bb8fb2074e8653251d0c118be33c30cebf6aecc8