This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Range.begin (from ruby core) --- self.begin -> object --- Returns the object that defines the beginning of `self`. (1..4).begin # => 1 (..2).begin # => nil Related: Range#first, Range#end.
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.