title: Access "data" object in AJAX request inside success function
body: <p>How can I access the <code>data</code> object used in a <code>$.ajax()</code> request?</p>
  
  <pre><code>$.ajax({
      url: "post.php",
      type:'POST',
      data:{
          el1: $('#el1').val(),
          ...
          el72: $('#el72').val()
      },
      success: function(res,status){
          //
      }
  });
  </code></pre>