This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# EOFError < IOError (from ruby core) --- Raised by some IO operations when reaching the end of file. Many IO methods exist in two forms, one that returns `nil` when the end of file is reached, the other raises `EOFError`. `EOFError` is a subclass of `IOError`. file = File.open("/etc/hosts") file.read file.gets #=> nil file.readline #=> EOFError: end of file reached ---
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.