ã³ã¼ãã¯ããã¦ãä¸åº¦ããæ¸ããã¾ããããä½åº¦ãä½äººãèªããã¨ã«ãªãã¾ãã æ®æ®µä½æ°ãªãæ¸ãã¦ããã³ã¼ããä»äººã®æéã¨ç²¾ç¥ãåã£ã¦ããããããã¾ããã ãããªããã§ãå人çã«è¾ããªã¨æããã¨ã 9 ã¤æãã¦ã¿ã¾ãããå ±æãã¦ãããããã®ãããã¤ãããããããªããã¨æãã¾ãã å®ä½ã«ããããªãå¤æ°å è¦åãã®ä»ããªãé åã¨ããã·ã¥ã®å¤æ°å å¼ã³åºãå 㧠true/false ãæå®ããã ãã®å¼æ° æé»ã®å®è¡é åº [] ã¡ã½ããã®å®ç¾©ã»Array ã®ç¶æ¿ ããã·ã¥ã®ä¹±ç¨ å¯çµåãã mixin éå°ãª nil guard æ¡ä»¶ã«ãã£ã¦ç°ãªãè¿ãå¤ã®å æ¨è¦å³æ¸ éçåä»ãè¨èªã使ããã¨ã§è§£æ¶ãããåé¡ãããã¾ããããã®é¸æè¢ã¯ã²ã¨ã¾ããªãã¨ãããã¨ã§ã Ruby åæã«ãªã£ã¦ãã¾ãããä»ã®è¨èªã«ãè¨ãããã¨ãå¤ãã¨æãã¾ãã å®ä½ã«ããããªãå¤æ°å ä¾ãã° Vehicle ã¨ããã¯ã©ã¹ãå®ç¾©ãã
{{#tags}}- {{label}}
{{/tags}}