This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Dir.close (from ruby core) --- dir.close -> nil --- Closes the directory stream. Calling this method on closed Dir object is ignored since Ruby 2.3. d = Dir.new("testdir") d.close #=> nil
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.