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

NilClass

        # NilClass < Object

(from ruby core)
---


The class of the singleton object `nil`.
---
# Instance methods:

    &
    ===
    =~
    ^
    inspect
    nil?
    rationalize
    to_a
    to_c
    to_d
    to_f
    to_h
    to_i
    to_r
    to_s
    |


      

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.