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摘要： http://www.pjhome.net/article.asp?id=679 大家都知道 Javascript 的 typeof 可以获取变量的类型, 但是 typeof 返回值只有六种 "number," "string," "boolean," "object," "function," 和 "undefined." 其实 Javascript 还有不少特殊的类别 比如 Array, D... 阅读全文