Reverse world in sentence with rack

gistfile1.rb

#my_rack_mtd.rb

require 'rack'
error = false

def check_argument
  if (ARGV.length < 1 || ARGV.length > 1 || ARGV[0].split(" ").size < 2)
    error = true
  end
  return error
end

def reverse_word_order(env)
    [200, {}, [check_argument ? "Enter one sentence with at least two words to reverse the sentence" : ARGV[0].split(" ").reverse.join(" ")]]
end

Rack::Handler::Thin.run method(:reverse_word_order)

Cool

much simpler than mine ;)