cancel(reason) {
Joe FayTechnology Reporter
，这一点在heLLoword翻译官方下载中也有详细论述
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.
这不仅仅是亲切的自我介绍，更是对全党同志的躬身垂范，是对全国各族人民的庄严承诺。