title: jQuery.post( ) .done( ) and success:
body: <p><code>jQuery</code> documentation on <code>jQuery.post( )</code></p>
  
  <pre><code>// Assign handlers immediately after making the request,
  // and remember the jqxhr object for this request
  var jqxhr = $.post( "example.php", function() {
    alert( "success" );
  })
    .done(function() {
      alert( "second success" );
    })
    .fail(function() {
      alert( "error" );
    })
    .always(function() {
      alert( "finished" );
  });
  
  // Perform other work here ...
  
  // Set another completion function for the request above
  jqxhr.always(function() {
    alert( "second finished" );
  });
  </code></pre>
  
  <p>What is the difference between the <code>success:</code> parameter and the <code>jqXHR.done( )</code> method; if there is none, what is the entire point of the <code>jqXHR.done( )</code> method?</p>