minWithOrNull method
Returns the first element having the smallest value according to the
provided comparator
or null
if there are no elements.
Implementation
E? minWithOrNull(Comparator<E> comparator) {
if (isEmpty) return null;
final iterator = this.iterator..moveNext();
var minElement = iterator.current;
for (final element in skip(1)) {
if (comparator(minElement, element) > 0) minElement = element;
}
return minElement;
}