symmetricDifference method

CustomSet<T> symmetricDifference(CustomSet<T> other)

Returns the symmetric difference of this set with other.

Notation: A ⊕ B = (A ∪ B) - (A ∩ B)

The symmetric difference contains all elements that are in either set but not in both.

Example:

final a = CustomSet<int>([2, 4, 6]);
final b = CustomSet<int>([2, 3, 5]);
final result = a.symmetricDifference(b);
// result = {3, 4, 5, 6}

Implementation

CustomSet<T> symmetricDifference(CustomSet<T> other) {
  final unionSet = union(other);
  final intersectionSet = intersection(other);
  return unionSet.difference(intersectionSet);
}