This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Module.prepend (from ruby core) --- prepend(module, ...) -> self --- Invokes Module.prepend_features on each parameter in reverse order.
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.