I was wondering if there is a way to implement a custom Ajax response method, besides what's already there, like "done" or "fail".

For example: 

  

   

    // Assign handlers immediately after making the request,
   
  
  

   

    // and remember the jqXHR object for this request
   
  
  

   

    var jqxhr = $.ajax( "example.php" )
   
  
  

   

     .done(function() {
   
  
  

   

     alert( "success" );
   
  
  

   

     })
   
  
  

   

     .fail(function() {
   
  
  

   

     alert( "error" );
   
  
  

   

     })
      .MyCustom(function() {
    
     

      

        alert( "Item Already Exists In the List" );
      
     
     

      

        })
      
     
   
  
  

   

     .always(function() {
   
  
  

   

     alert( "complete" );
   
  
  

   

     });
   
  
  

   

    }