JSFiddle - React, Tailwind, and code Playground

HTML

<form id="search" action="" method="post" >
    <input type="hidden" name="selection">
    <div class="dropdown">
      <button data-toggle="dropdown" id="dropdownMenu1" type="button" class="btn btn-default dropdown-toggle">Fixed <span class="caret"></span></button>

      <ul aria-labelledby="dropdownMenu1" role="menu" class="dropdown-menu">
            <li role="presentation"><a href="#" tabindex="-1" role="menuitem">Florida</a></li>
          <li role="presentation"><a href="#" tabindex="-1" role="menuitem">Texas</a></li>
            <li role="presentation"><a href="#" tabindex="-1" role="menuitem">Washington</a></li>
            <li role="presentation"><a href="#" tabindex="-1" role="menuitem">New York</a></li>
            <li role="presentation"><a href="#" tabindex="-1" role="menuitem">Ohio</a></li>
          </ul>
    </div>
</form>

JavaScript

$(document).ready(function() {
    $("ul li a").click(function() {
        text = $(this).closest("li").text();
        $("input[name='selection']").val(text);
        $(this).parents('.dropdown').find('.dropdown-toggle').html(text+' <span class="caret"></span>');
        $("#search").submit();
    });
});