isSorted method

bool isSorted(
  1. Comparator<T> compare

Whether the elements are sorted by the compare ordering.

Compares pairs of elements using compare to check that the elements of this iterable to check that earlier elements always compare smaller than or equal to later elements.

An single-element or empty iterable is trivially in sorted order.


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;