This is a Ruby tree! It shows every object from the Ruby Programming Language in a tree format.
# String.gsub! (from ruby core) --- gsub!(pattern, replacement) -> self or nil gsub!(pattern) {|match| ... } -> self or nil gsub!(pattern) -> an_enumerator --- Performs the specified substring replacement(s) on `self`; returns `self` if any replacement occurred, `nil` otherwise. See [Substitution Methods](#class-String-label-Substitution+Methods). Returns an Enumerator if no `replacement` and no block given. Related: String#sub, String#gsub, String#sub!.
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.