Also note the use of _call.call(_toString, original) rather than simply original.toString(). This is because original.toString might itself be hooked by the time spoof is called. By holding cached references to Function.prototype.call and Function.prototype.toString at the very beginning of the script (before any page code runs), and invoking them via those cached references, the spoof function is immune to any tampering that might have happened in the interim. It’s eating its own tail in the most delightful way.
(If you found it too simple. Here’s a harder version.)，推荐阅读搜狗输入法下载获取更多信息
Tiny Footprint: Our HH-Routing data adds only 0.5% to 1% to OsmAnd's already incredibly compact map sizes. The entire planet's car routing data is around 800MB!。业内人士推荐旺商聊官方下载作为进阶阅读
行政执法监督机构按照规定对行政执法人员资格进行审核，对符合法定条件并通过行政执法资格考试的，制发行政执法证件，确认行政执法人员资格。。关于这个话题，heLLoword翻译官方下载提供了深入分析
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