PythonãHaskellãErlangã«ã¯ãªã¹ãå å 表è¨ã¨å¼ã°ãã ãªã¹ãã®ä¸ã§æ°ããªãªã¹ããçæããæ§æãããã ä¾ãã°Rubyã§ãªã¹ãã®è¦ç´ ã®å¤ãåã«ãããå ´å㯠Array#mapã使ããã l = [*1..10] l.map { |i| i*2 } # => [2, 4, 6, 8, 10, 12, 14, 16, 18, 20] ãããErlangã®ãªã¹ãå å 表è¨ã§ã¯ä»¥ä¸ã®ããã«æ¸ãããã L = lists:seq(1,10). [X*2 || X <- L]. % => [2,4,6,8,10,12,14,16,18,20] ãªã¹ãLããXãé¸ã³åºãããã«2ãæãããã®ãè¿ã ã¤ã¾ã || ã®å·¦è¾ºã«ã¯åºåã¨ãªãå¼ã å³è¾ºã«ã¯éå®åãæ¸ã X <- Lã¯Erlangã§ã¯Generatorã¨å¼ã¶ãããã 次ã«ãªã¹ãããå¶æ°ã ããé¸ã㧠ããããåã«ãããå ´åãèããã Ru
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