ããã¨ããå æ¸ã ã£ãåå¤å®ã«ã¤ãã¦ã確èªã®æå³ãè¾¼ãã¦ããã«ã ä»å¾ã®ããã«ããé ã®ä¸ãæ´çãã¦ã¿ãã åã®å¤å®ã«è¯ã使ç¨ãããã® === typeof instanceof constructor ããããã«å©ç¹ããããç¶æ³ã«ãã£ã¦ä½¿ãåãããã¨ã«ãªãããå¦çé度ã¯ä¸è¨ã®é ã®éããã===ããæãéãã ã¤ã¾ããã===ã<ãtypeofã<ãinstanceofã<ãconstructorã ä¸å³ã¯Firebugã§è¨æ¸¬ããçµæã§ããç°å¢ã«ãã£ã¦æ°å¤ã¯å¤ããã¨æãããåèå¤ã¨ãã¦ã覧ä¸ããã 100ä¸å for loopã§åããå¦çã«æã£ãæé â»ã*constructorãã¯å¾ã«èª¬æãã¾ãã ä¸é¨ãæ±ãåã«ãã£ã¦å¦çé度ã«å·®ãè¦ãããã ãã®äºã¤ã®ä¾å¤ã以ä¸ã«èª¬æãã¾ãã åå¨ããªã夿°ãåç §ããå ´åã®ãundefinedãã«ã¤ãã¦var a; alert(typeof a); é常ã¯
{{#tags}}- {{label}}
{{/tags}}