This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Date.cwday (from ruby core) --- d.cwday -> fixnum --- Returns the day of calendar week (1-7, Monday is 1). Date.new(2001,2,3).cwday #=> 6
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.