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june29/japanese-weekday.rb

Last active August 29, 2015 13:55
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japanese-weekday.rb
# -*- coding: utf-8 -*-
require "date"
class Date
(1..5).each { |n|
define_method("第#{n}?") { (self.day.to_f / 7.to_f).ceil == n }
}
%w(日 月 火 水 木 金 土).each_with_index { |曜日, index|
define_method("#{曜日}曜日?") { index == self.wday }
}
end
今日 = Date.today
今日.木曜日?
今日.第3?
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