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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 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 { |var| var.to_s }
end
end
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