JSFiddle - React, Tailwind, and code Playground

HTML

<form name="edit_posting1" id="edit_posting1" method="post" action="edit_posting_bk.php" role="form">

  <center>

    <input class="btn btn-home" type="submit" name="publish" id="publish" alt="Publish" value="Preview" />
    <input class="btn btn-home" type="submit" name="save" id="save" alt="Save" value="Save" />
  </center>
</form>

JavaScript

$("#edit_posting1").on("submit", function(e) {
   e.preventDefault();
   var el = $(this).data('submitter');
   alert(el);
 });

 $("#publish,#save").click(function(e) {
   if (this.id == "save") {
     if (!confirm('Are you sure you want to Submit.')) {
       e.preventDefault();
       return false;
     }
   }
   $(this).closest("#edit_posting1").data("submitter", this.id);
 });