This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Module.attr (from ruby core) --- attr(name, ...) -> array attr(name, true) -> array attr(name, false) -> array --- The first form is equivalent to #attr_reader. The second form is equivalent to `attr_accessor(name)` but deprecated. The last form is equivalent to `attr_reader(name)` but deprecated. Returns an array of defined method names as symbols.
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.