code: public final Ix<Object[]> collectToArray() {
          return collect(ToListHelper.<T>initialFactory(), ToListHelper.<T>collector())
                  .map(ToListHelper.<T>toArray());
      }
docs: Collects the elements of this sequence into an Object array.
  <p>
  The result's iterator() doesn't support remove().
  @return the new Ix instance
  @since 1.0