JSFiddle - React, Tailwind, and code Playground

HTML

<div style="background:red">
     aaa
    <span>sometext</span>
</div>
<a class="remote" href="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js">click me</a>

JavaScript

$(function() {
  $("a.remote").live("click", function(e) {    
    $.ajax({
      url: this.href,
      dataType: "script",
      success: function(xhr, status) {
                myFunction();
            }
    });

    e.preventDefault();
    return false;
  });

});

function myFunction() {
    //$("span").each(function(){
    //    $(this).text($(this).text().replace("some", "more"));
    //});
    $("span").replaceWith("<p>test</p>");
}