以前對黑客很崇拜，黑客的世界無比精彩。最近為了炫耀，想起了這段特殊的代碼。
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這是一段js代碼，把它放到你的控制台里面運行，看看發生了什么？
這段代碼來着於這個網站轉碼得到：http://www.jsfuck.com/
源碼：
alert("hello")
這是一個黑客奇葩的想法。
在黑客行為中，你的js代碼可能被關鍵詞檢測，於是考慮躲避關鍵詞檢測的想法，例如 eval等關鍵詞。
1、想了各種方法來規避這個檢測。
2、把方法寫成通用的程序。
3、把包含的字符做到極致，最后只剩下 ()+[]! 這六個字符。
這里是它的百科，感興趣可以去了解下：https://en.wikipedia.org/wiki/JSFuck
用途：
1、腳本注入時防止過濾
2、一定程度加密關鍵代碼（生成代碼很長，不適合加密大量代碼。只能一定程度上加密，不能依賴）
3、裝逼用（我最中意的用途）
結論：轉換后本質依然是javascript，通過javascript的一些性質來生成，具體實現可以看這里的代碼https://github.com/aemkei/jsfuck