lib/elevator-engine/elevator-engine.js
function(floors, options, callback) {
                if(floors != null && floors.length > 0) {
                   _moveElevator(config, floors, options.ascending, logger, levelController, function(error) {
                        return callback(error, floors, options);
                    });
                } else {
                    return callback(null, null, null);
                }           
            }
function(floors, options, callback) {
                if(floors != null && floors.length > 0) {
                   _moveElevator(config, floors, options.ascending, logger, levelController, function(error) {
                        return callback(error, floors, options);
                    });
                } else {
                    return callback(null, null, null);
                }           
            }
function ( floors , options , callback ) { if ( floors != null && floors . length > 0 ) { _moveElevator ( config , floors , options . ascending , logger , levelController , function ( error ) { return callback ( error , floors , options ) ; } ) ; } else { return callback ( null , null , null ) ; } }
Migrate the files
Migrate the files