difference abstract method
Creates a new set with the elements of this that are not in other
.
That is, the returned set contains all the elements of this Set that
are not elements of other
according to other.contains
.
final characters1 = <String>{'A', 'B', 'C'};
final characters2 = <String>{'A', 'E', 'F'};
final differenceSet1 = characters1.difference(characters2);
print(differenceSet1); // {B, C}
final differenceSet2 = characters2.difference(characters1);
print(differenceSet2); // {E, F}
Implementation
Set<E> difference(Set<Object?> other);