*<Null safety>*
bool isSorted (Comparator<T> compare)
bool isSorted(Comparator<T> compare) { var iterator = this.iterator; if (!iterator.moveNext()) return true; var previousElement = iterator.current; while (iterator.moveNext()) { var element = iterator.current; if (compare(previousElement, element) > 0) return false; previousElement = element; } return true; }