This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.

inspect

        # NilClass.inspect

(from ruby core)
---
    nil.inspect  -> "nil"

---

Always returns the string "nil".



      

This is MURDOC! A Ruby documentation browser inspired by Smalltalk-80. It allows you to learn about Ruby by browsing through its class hierarchies, and see any of its methods.