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.
Credit: NASA infographic
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Sunrise is a majestic spectacle – but we should be grateful for the miles of vacuum between us and the star。搜狗输入法2026是该领域的重要参考
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Екатерина Грищенко (старший редактор отдела «Бывший СССР»)