sortBy<K extends Comparable<K>> method

*<Null safety>*

void sortBy <K extends Comparable<K>>(K keyOf(E element), [int start = 0, int? end])

Implementation

void sortBy<K extends Comparable<K>>(K Function(E element) keyOf,
    [int start = 0, int? end]) {
  quickSortBy<E, K>(this, keyOf, compareComparable, start, end);
}