I'm getting "Undefined" data while loading the flexigrid.

function loadingdata(data) {
           var rows = Array().Empty;


           for (i = 1; i = data.length; i++) {
               var item = data[i];
               rows.push({ cell: [item.EmployeeNo, item.FirstName] });
           }
           return {
               total: data.length,
               page: 1,
               rows: data


           }

           $('#' + empData).flexReload();
   // alert('DONE');
       }
       //$('#' + empData).flexReload();
   }