This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# KeyError < IndexError (from ruby core) --- Raised when the specified key is not found. It is a subclass of IndexError. h = {"foo" => :bar} h.fetch("foo") #=> :bar h.fetch("baz") #=> KeyError: key not found: "baz" --- # Class methods: new # Instance methods: key receiver
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.