显示多个选定复选框的值以及与它们关联的形式为JSON格式

Question

我对javascript很陌生，还在尝试获取api与后端进行交互。我已经选中了一些复选框，如果要选择它们的值，我希望将它们的值存储在数组中（以json格式），还将选择要在输入框中输入的值，然后使用fetch api将其发送到后端的数组。用于进行处理。任何人都可以在这里帮助我。

$("#step1").click(function() {
  $("#checked1").css("display", "initial");
  $("#checked1").toggle($(this).prop("checked"));
});
      
$("#step2").click(function() {
  $("#checked2").css("display", "initial");
  $("#checked2").toggle($(this).prop("checked"));
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<p> Ready to start </p>
<div class="form-check checkbox-rounded checkbox-filled">
 <input type="checkbox" class="form-check-input filled-in" value="Yes" name="demo" id="Yes">
  <label class="form-check-label" for="Yes">Yes</label>
</div>

<div class="form-check checkbox-rounded checkbox-filled">
 <input type="checkbox" class="form-check-input filled-in" value="step1" name="demo" id="step1">
  <label class="form-check-label" for="step1">Check to start step1</label>

   <div id ="checked1" style="padding-left:20px; display: none;" class="custom-control-inline">

    <input type="text" id="inputValue" class="form-control form-centrol-sm" style="width: 60%; display: inherit;" placeholder="Enter your name">
      <hr style="margin-top: 0.5rem !important; margin-bottom: 0.5rem !important;">
    </div>
</div>

<div class="form-check checkbox-rounded checkbox-filled">
 <input type="checkbox" class="form-check-input filled-in" value="step2" name="demo" id="step2">
   <label class="form-check-label" for="step2">Check to start step2</label>

     <div id ="checked2" style="padding-left:20px; display: none;" class="custom-control-inline">
     <input type="text" id="inputValue" class="form-control form-centrol-sm" style="width: 60%; display: inherit;" placeholder="Enter your age">
      <hr style="margin-top: 0.5rem !important; margin-bottom: 0.5rem !important;">
     </div>
</div>

Answer 1