This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# String.-@ (from ruby core) --- -string -> frozen_string --- Returns a frozen, possibly pre-existing copy of the string. The returned String will be deduplicated as long as it does not have any instance variables set on it.
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.