[1]
[CITE@ja[てすと - Re: JavaScriptで変数(オブジェクト)が配列かどうかを知る方法]] ([[わかば]] 著, [TIME[2007-03-18 16:43:38 +09:00]] 版) <http://koton.jp/w/1/>
([[名無しさん]] [WEAK[2007-03-18 07:45:22 +00:00]])

[2] [CITE@en[Ajaxian » Working aroung the instanceof memory leak]] ([TIME[2009-01-26 10:36:40 +09:00]] 版) <http://ajaxian.com/archives/working-aroung-the-instanceof-memory-leak>