This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Set.delete_if (from ruby core) --- delete_if() { |o| ... } --- Deletes every element of the set for which block evaluates to true, and returns self. Returns an enumerator if no block is given.
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.