This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Thread.keys (from ruby core) --- thr.keys -> array --- Returns an array of the names of the fiber-local variables (as Symbols). thr = Thread.new do Thread.current[:cat] = 'meow' Thread.current["dog"] = 'woof' end thr.join #=> #<Thread:0x401b3f10 dead> thr.keys #=> [:dog, :cat]
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.