Ruby's Hash is a Swiss-Army Knife

URL: https://www.akshaykhot.com/ruby-hash-is-a-swiss-army-knife/?ref=akshays-blog-newsletter
Type: article
Domain: akshaykhot.com

Excerpt: A Hash is a built-in data structure in Ruby that maps values to keys and has a constant-time O(1) lookup. This article shows the capabilities of this simple, but equally powerful tool. We’ll start with the basics but also cover some obscure but equally useful features of hash.

Notes:
A nice review of all the things Ruby hashes can do and be used for.