maximumBy method

T? maximumBy(
  1. Comparator<T> comparator
)

Returns the maximum value based on the comparator function.

Example:

[90, 10, 20, 30].maxBy((a, b) => a.compareTo(b)); // 90
persons.maxBy((a, b) => a.age.compareTo(b.age));  // the oldest person

Implementation

T? maximumBy(Comparator<T> comparator) {
  ArgumentError.checkNotNull(comparator, 'comparator');
  if (isEmpty) return null;
  return reduce(
      (value, element) => comparator(value, element) > 0 ? value : element);
}