This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# StringScanner.values_at (from ruby core) --- scanner.values_at( i1, i2, ... iN ) -> an_array --- Returns the subgroups in the most recent match at the given indices. If nothing was priorly matched, it returns nil. s = StringScanner.new("Fri Dec 12 1975 14:39") s.scan(/(\w+) (\w+) (\d+) /) # -> "Fri Dec 12 " s.values_at 0, -1, 5, 2 # -> ["Fri Dec 12 ", "12", nil, "Dec"] s.scan(/(\w+) (\w+) (\d+) /) # -> nil s.values_at 0, -1, 5, 2 # -> nil
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.