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pdf版本,英文版第158页,
var isArray = Function.isArray || function(o) { return typeof o === "object" && Object.prototype.toString.call(o) === "[object Array]"; }; return typeof o === "object" && Object.prototype.toString.call(o) === "[object Array]"; };
var isArray = Array.isArray || function(o) { return typeof o === "object" && Object.prototype.toString.call(o) === "[object Array]"; };
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原文地址:http://blog.csdn.net/bzq9012/article/details/43883025