JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<form>
  
  <input type="text" name="test" value="true" disabled>
  <input type="text" name="test2" value="true2">
  <button type="submit">Submit</button>
  
</form>

JavaScript

$(function(){

    $('form').on('submit', function(e) {
        e.preventDefault();

        const disabledInputs = $(this).find('input[disabled]');
        disabledInputs.removeAttr('disabled');

        const data = $(this).serialize();

        disabledInputs.attr('disabled', true);


        console.log(data);
        alert(data);
    });

});