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.
第六十九条 娱乐场所和公章刻制、机动车修理、报废机动车回收行业经营者违反法律法规关于要求登记信息的规定，不登记信息的，处警告；拒不改正或者造成后果的，对其直接负责的主管人员和其他直接责任人员处五日以下拘留或者三千元以下罚款。
，详情可参考旺商聊官方下载
Hendry said he was disappointed prosecutors didn’t charge Coulibaly with assaulting an officer — the felony offense police originally proposed.，详情可参考Line官方版本下载
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
优势：时间复杂度O(d*(n+k))，d为位数，适合位数少的整数