Send an array of method names

send_key_path.rb

class Object
  
  def send_key_path(key_path)
    key_path.inject(self) { |current, method| current.send(method) }
  end
  
end

class Foo  
  def bar
    Bar.new
  end
  
end

class Bar
  def baz
    Baz.new
  end
end

class Baz
  def quux
    "quux"
  end
end

obj = Foo.new

puts obj.send_key_path "bar.baz.quux".split('.')