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Last active December 23, 2015 12:09
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cheatsheet-ruby.md

入出力

標準入力を隠す

require 'io/console'
password = STDIN.noecho(&:gets).chomp

日付・時刻

Time.now.strftime("%Y/%m/%d %H:%M:%S")
# => "2013/09/20 15:08:22"
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