This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# StringScanner.rest_size (from ruby core) --- rest_size() --- `s.rest_size` is equivalent to `s.rest.size`.
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.