length property

  1. @override
int get length
override

The number of elements in this Iterable.

Counting all elements may involve iterating through all elements and can therefore be slow. Some iterables have a more efficient way to find the number of elements. These must override the default implementation of length.

Implementation

@override
int get length {
  if (step > 0 && start >= end) return 0;
  if (step < 0 && start <= end) return 0;
  return ((end - start) / step).ceil();
}