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