  */
        public function toArray():Array {
            return this._collection.concat();
        }
        
        /**
            Returns a list that is an exact copy of the original list.
            
            @return Returns a list that is an exact copy of the original list.
        */
        public function clone():IList {
            return new List(this.toArray());
        }
        
        /**
            Returns a string that represents the items in the list.
            
            @retu