This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Symbol.swapcase (from ruby core) --- swapcase(*options) -> symbol --- Equivalent to `sym.to_s.swapcase.to_sym`. See String#swapcase.
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.