This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Symbol.[] (from ruby core) --- sym[idx] -> char sym[b, n] -> string sym.slice(idx) -> char sym.slice(b, n) -> string --- Returns `sym.to_s[]`.
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.