Btw you are 6 kyu by just solving 55 kata, which is rare and impressive.
Did you already have experience before you started codewars which helped you solve higher kata(more score point) earlier and rank up quickly.

Or were you beginner and yet you just went ahead and solved higher level kata.

Immediately came to the discussion after understanding that it's a good kata. I wonder how long i will take.

we go get!!

That's true. However this solution is really old, probably written before var became depricated.