jirb irb main 001 0 РАК downcase 320 240 320 220 320...

$ jirb irb(main):001:0> "РАК".downcase => "\320\240\320\220\320\232" irb(main):002:0> "РАК" => "\320\240\320\220\320\232" irb(main):003:0> "CANCER".downcase => "cancer" read more