åã¯ãããªã¹ãã¢ããã®çµåå¾ãæ¸ãä¸ããã¨ãè¨ããã¦ã絶対ã«ã§ãã¾ãããã ã£ã¦ãã¾ã£ããæ¶ãã¦ãªãããæ¶ããåªåããã¦ãåã«ã¯ã¨ãã¦ãæ¶ããããã·ãã¢ãã§ã¯ãªãããã§ãã ã§ãããããã³ãã¼ãã¼ã¨ãã¼ã«ãã³ï¼ã§ããã°3è²ï¼ãä¸ãããã¦ããããæ°åã¨èª¿åãããã¨ããªããæ°åå¾ã«ã¯æ¬¡ã®ãããªçµæãåºããã¨æãã¾ãã ãªã¹ãã¢ããã®çµåå¾ã¯æ¬¡ã®éãã lislislisâList<List<List<X>>> ã«å¯¾ãã¦ã List.flatten<X>(List.map(List.flatten<X>)(lislislis)) = List.flatten<X>(List.flatten<List<X>>(lislislis)) æ°åã¨èª¿åãããã¨ãã®åãããããã³ãã¼ãã¼ã¨ãã¼ã«ãã³ã§ã©ãããè¨ç®ãããããç´¹ä»ãã¾ããããã¾ãã¯ãåããªãã§æ®éã®è¨ç®ãããªãã®ãï¼ã§ããªãã®ãã®çç±ããã çµµã
{{#tags}}- {{label}}
{{/tags}}