这场新旧交替的博弈，库克没有做选择题，他全都要。
This is a well-known browser security technique. In JavaScript, calling .toString() on a native browser function returns "function appendBuffer() { [native code] }". Calling it on a JavaScript function returns the actual source code. So if your appendBuffer has been monkey-patched, .toString() will betray you; it’ll return the attacker’s JavaScript source instead of the expected native code string.
。关于这个话题，夫子提供了深入分析
Detect unclear structure.。搜狗输入法2026对此有专业解读
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