This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# Set.add (from ruby core) --- add(o) --- Adds the given object to the set and returns self. Use `merge` to add many elements at once. Set[1, 2].add(3) #=> #<Set: {1, 2, 3}> Set[1, 2].add([3, 4]) #=> #<Set: {1, 2, [3, 4]}> Set[1, 2].add(2) #=> #<Set: {1, 2}>
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.