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hashset/hashset.go

@@ -51,3 +51,13 @@ func (s *Set[T]) IsDisjoint(otherSet Set[T]) bool {
 	}
 	return true
 }
+
+func (s *Set[T]) Intersect(otherSet Set[T]) Set[T] {
+	intersect := make(Set[T])
+	for val, _ := range *s {
+		if otherSet.Contains(val) {
+			intersect.Add(val)
+		}
+	}
+	return intersect
+}