JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
  <div>
    <input id="field1" type="text" value="" name="fieldName1">
    <input id="field2" type="text" value="" name="fieldName2">
  </div>
  <div>
    <input id="field3" type="text" value="" name="fieldName3">
    <input id="field4" type="text" value="" name="fieldName4">
  </div>
  <div>
    <input id="field5" type="text" value="" name="fieldName5">
    <input id="field6" type="text" value="" name="fieldName6">
  </div>
</div>

JavaScript

$('.parent > div').each(function(){
    alert($(this).find('input').first().attr('name'));
});