void sort(
[int compare(E a, E b)]
)

Sorts this list according to the order specified by the compare function.

The compare function must act as a Comparator.

List<String> numbers = 'one', 'two', 'three', 'four'; // Sort from shortest to longest. numbers.sort((x, y) => x.length.compareTo(y.length)); numbers.join(', '); // 'one, two, four, three'

The default List implementations use Comparable.compare if compare is omitted.

List<int> nums = 13, 2, -11; nums.sort(); nums.join(', '); // '-11, 2, 13'

Source

void sort([int compare(E a, E b)]) {
  throw new UnsupportedError("Cannot sort immutable List.");
}