This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# String.chars (from ruby core) --- str.chars -> an_array --- Returns an array of characters in *str*. This is a shorthand for `str.each_char.to_a`. If a block is given, which is a deprecated form, works the same as `each_char`.
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.