javascript - 如何检查(动态)选中哪个单选按钮？

Question

我正在创建一个在线考试门户，以下是向考生显示问题的代码。我不知道如何处理候选人点击的答案

$("input[name='hello']").click(function(){
    alert("you clicked on");
});

单选按钮是针对 100 个问题动态创建的，每个问题 4 个问题

Answer 1

试试这个 -

$('input[data-type=choice]').change(function() {
  var Question = $(this).attr('name');
  var Checked = $(this).attr('value');
  console.log('Selected Choice for ' + Question + ' is ' + Checked);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="button" value="Log all Answers" onclick="logAllAnswers()">
<input type="button" value="Clear Log" onclick="console.clear();">
<hr>
<form>
  <fieldset>
    <legend>1. Select the answer for the first question.</legend>
    <input type="radio" data-type="choice" name="Q1" value="1">Option 1
    <br>
    <input type="radio" data-type="choice" name="Q1" value="2">Option 2
    <br>
    <input type="radio" data-type="choice" name="Q1" value="3">Option 3
    <br>
    <input type="radio" data-type="choice" name="Q1" value="4">Option 4
  </fieldset>
  <fieldset>
    <legend>2. Select the answer for the second question.</legend>
    <input type="radio" data-type="choice" name="Q2" value="1">Option 1
    <br>
    <input type="radio" data-type="choice" name="Q2" value="2">Option 2
    <br>
    <input type="radio" data-type="choice" name="Q2" value="3">Option 3
    <br>
    <input type="radio" data-type="choice" name="Q2" value="4">Option 4
  </fieldset>
  <fieldset>
    <legend>3. Select the answer for the third question.</legend>
    <input type="radio" data-type="choice" name="Q3" value="1">Option 1
    <br>
    <input type="radio" data-type="choice" name="Q3" value="2">Option 2
    <br>
    <input type="radio" data-type="choice" name="Q3" value="3">Option 3
    <br>
    <input type="radio" data-type="choice" name="Q3" value="4">Option 4
  </fieldset>
</form>



<script>
  function logAllAnswers() {
    $('input[data-type=choice]:checked').each(function() {
      var Question = $(this).attr('name');
      var Checked = $(this).attr('value');
      console.log('Selected Choice for ' + Question + ' is ' + Checked);
    });
  }
</script>