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yancya/months.rb

Last active December 21, 2015 01:29
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連続した年月の文字列を出力する
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months.rb
# rjust をいつも忘れる
(2011..2013).each{|y| (1..12).each{|m| print [y.to_s, m.to_s.rjust(2, "0")].join('-') + ' '}}
# こっちの方がスマートかも
(2011..2013).to_a.product((1..12).map{|n| n.to_s.rjust(2, "0")}).map{|a| a.join("-")}.join(" ")
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