<div> <input type="hidden" class="again" value="1111"> <input type="hidden" class="again" value="2222"> <input type="hidden" class="again" value="3333"> <input type="hidden" class="again" value="4444"> </div>
<script> var result=''; $(".again").each(function(){ result=result+ $(this).val()+','; }); console.log(result); </script>