Building a Binary Tree with Enumerable | Mike Perham2014-11-26 I believe that the Enumerable module is the most important thing to understand if you want to go from a beginner to intermediate Rubyist. It requires you to understand two fundamental parts of Ruby: modules and blocks. Ruby’s standard library includes hashes, arrays, sets and thread-safe queues. One structure missing is a generic binary tree. Binary trees are great general purpose data
