List<E> sublist (int start, [int? end]) inherited
List<E> sublist(int start, [int? end]) { int listLength = this.length; end ??= listLength; if (end == null) throw "!"; // TODO(38493): The `??=` should promote. RangeError.checkValidRange(start, end, listLength); return List.from(getRange(start, end)); }