index.html

<form id="frm">

  name:
  <input type="text" data-bind="person.name" /><br />
  email:
  <input type="email" data-bind="person.user.email" /><br />
  password:
  <input type="password" data-bind="person.user.password" /><br />
  father:
  <select name="name" data-bind="person.fatherName">
      <option value="ali">ali</option>
      <option value="mamad">mamad</option>
      <option value="naser">naser</option>
  </select><br />
  wallet:
  <input type="checkbox" data-bind="wallet.isTrue" /><br />
  data:
  <input type="hidden" data-bind="date" />
  gender:
  <input type="radio" name="gender" data-bind="user.gender" value="male" />1
  <input type="radio" name="gender" data-bind="user.gender" value="feMale" />0<br />

  city:
  <select data-bind="city">
      <option value="tehran">تهران</option>
      <option value="karaj">کرج</option>
  </select><br />

  multi:
  <select multiple data-bind="user.multiple">
      <option value="opt1">1</option>
      <option value="opt2">2</option>
  </select>

</form>
<script src="https://code.jquery.com/jquery-3.4.1.min.js" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" crossorigin="anonymous"></script>
<script src="JsonFormConvertor.js"></script>

<script>
var obj = JSON.parse('{"person":{"name":"ashkan","user":{"email":"email@site.com","password":"123"},"fatherName":"ali"},"wallet":{"isTrue":true},"date":"","user":{"gender":"male","multiple":["opt1","opt2"]},"city":"tehran"}');

var form = new JsonFormConvertor();

form.setData('#frm', obj);

console.log(form.getData('#frm'));

</script>