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


        # StandardError < Exception

(from ruby core)
The most standard error types are subclasses of StandardError. A rescue
clause without an explicit Exception class will rescue all
StandardErrors (and only those).

    def foo
      raise "Oups"
    foo rescue "Hello"   #=> "Hello"

On the other hand:

    require 'does/not/exist' rescue "Hi"

*raises the exception:*

    LoadError: no such file to load -- does/not/exist


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.