The series is actually by Aphyr, and the first one is here. https://aphyr.com/posts/340-reversing-the-technical-interview https://aphyr.com/posts/340-reversing-

The series is actually by Aphyr, and the first one is here. https://aphyr.com/posts/340-reversing-the-technical-interview https://aphyr.com/posts/340-reversing-the-technical-intervie... This post translates one of them from Haskell to typescript (very well IMO).