Cantin cantin

## gist:3936965
file = File.join(Rails.root, 'log/markdown.log')
File.new(file, 'w+') unless File.exist?(file)
logger = Logger.new(file)
logger.info("#{Time.now}: Share##{_id}'s price is from #{latest_price} to #{new_price}")
logger.close

## how_it_works.md
$ rspec --format MacVimFormatter --color spec

## iter_for.rb
class Iterator < Enumerator
  def initialize obj, meth, *args
    super() do |y|
      loop do
        y << obj
        obj = obj.send(meth, *args)
      end
    end
  end
end
	file = File.join(Rails.root, 'log/markdown.log')
	File.new(file, 'w+') unless File.exist?(file)
	logger = Logger.new(file)
	logger.info("#{Time.now}: Share##{_id}'s price is from #{latest_price} to #{new_price}")
	logger.close
	class Iterator < Enumerator
	def initialize obj, meth, *args
	super() do \|y\|
	loop do
	y << obj
	obj = obj.send(meth, *args)
	end
	end
	end
	end