 this._collection.lastIndexOf(item, fromIndex);
        }
        
        /**
            The number of elements in the list.
        */
        public function get size():uint {
            return this._collection.length;
        }
        
        /**
            Modifies the list by removing all items that are identical to the specified item.
            
            @param item: Element to remove.
            @return Returns <code>true</code> if the list was changed as a result of the call; otherwise <