This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Integer.to_r (from ruby core) --- int.to_r -> rational --- Returns the value as a rational. 1.to_r #=> (1/1) (1<<64).to_r #=> (18446744073709551616/1)
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.