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.
引领时代、塑造世界是理论创新的强大力量
，详情可参考一键获取谷歌浏览器下载
Tan is far from the only person turning to Reddit, which launched in 2005 and was once viewed as a place for nerds.
* Code should be simple and clean, never over-complicate things.