partition method

Iterable<Iterable<T>> partition(bool condition(T element))

Returns an iterable containing two iterables, one containing the elements that match the condition and one containing those that do not.

The first iterable returned contains all the elements in this iterable that returns true when passed to condition. The second iterable returned contains all the elements in this iterable that returns false when passed to condition.

Example:

void main() {
  final list = [1, 2, 3, 4];
  final result = list.partition((x) => x % 2 == 0);

  // Result: ([2, 4], [1, 3])
}

Implementation

Iterable<Iterable<T>> partition(bool Function(T element) condition) {
  return [
    where((o) => condition(o)),
    where((o) => !condition(o)),
  ];
}