This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Module.=== (from ruby core) --- mod === obj -> true or false --- Case Equality---Returns `true` if *obj* is an instance of *mod* or an instance of one of *mod*'s descendants. Of limited use for modules, but can be used in `case` statements to classify objects by class.
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.