class Object # Returns a hash with string keys that maps instance variable names without "@" to their # corresponding values. # # class C # def initialize(x, y) # @x, @y = x, y # end # end # # C.new(0, 1).instance_values # => {"x" => 0, "y" => 1} def instance_values Hash[instance_variables.map { |name| [name[1..-1], instance_variable_get(name)] }] end # Returns an array of instance variable names as strings including "@". # # class C # def initialize(x, y) # @x, @y = x, y # end # end # # C.new(0, 1).instance_variable_names # => ["@y", "@x"] def instance_variable_names instance_variables.map(&:to_s) end end