union method
Creates a new set which contains all the elements of this set and other
.
That is, the returned set contains all the elements of this Set and
all the elements of other
.
final characters1 = <String>{'A', 'B', 'C'};
final characters2 = <String>{'A', 'E', 'F'};
final unionSet1 = characters1.union(characters2);
print(unionSet1); // {A, B, C, E, F}
final unionSet2 = characters2.union(characters1);
print(unionSet2); // {A, E, F, B, C}
Implementation
@override
Set<String?> union(Set<String?> other) => _inner.union(other);