LTé§åã®çºè¡¨å 容ã®ä¸æ¸ãã§ãã ä¸æ¸ãã¨ãã£ã¦ãååã«ããã¦ããã¤ããã§ãããï¼èªã¿ãããã¨ã¯ãã£ã¦ããªã) ãã®ã¨ãã®ã¹ã©ã¤ã IO (Maybe String)ã¯ã¢ãããå ¥ãåã«ãªã£ã¦ãããIOãªããã¤ãã¦ãã¨ã¨ã¦ãæ±ãã¥ãããå®éã«ä½é¨ãã¦ã¿ãããã¦ã¿ãã IO String㯠å®è¡ãããã³ã«æååãè¿ã£ã¦ãããè¿ã£ã¦ããæååã®å 容ã¯å®è¡ãããã³ã«å¤ãããããããªãã Maybe String㯠è©ä¾¡ããã¨æååãããã¯ç©ºã£ã½ãããããªãå¤ãè¿ã£ã¦ãããè©ä¾¡ãããã³ã«çµæã¯å¤ãããªãã IO (Maybe String)ã¯ãå®è¡ãããã³ã«æååãããã¯ç©ºã£ã½ã®å¤ãè¿ã£ã¦ãããå¤ã¯å®è¡ãããã³ã«å¤ãããããããªãã IO Maybe Stringã§ã¯ãªãã (IO Maybe) Stringã¨è§£éããããããããã¯åã¨ãã¦ä¸æ£ã IOã¯ä¸ã¤ã®åããåãåããªããï¼ã¤ã®åãåãåãã
{{#tags}}- {{label}}
{{/tags}}