この難読化されたコードはどのように機能しますか？

Question

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

このJavaScriptコードは、「Hello、world！」と表示されます。誰でも私にこのことがどういうものなのか説明できますか？

Answer 1

この投稿はthis meta postに基づいて作成されています。 @Thomasとして

---

これはJSFuckで、コメントにmentionedを持っています。詳しい説明はサイトでご覧いただけます。 （同じサイトからの）基本：

は基本

false  => ![] 
true  => !![] 
undefined => [][[]] 
NaN   => +[![]] 
0   => +[] 
1   => +!+[] 
2   => !+[]+!+[] 
10   => [+!+[]]+[+[]] 
Array  => [] 
Number  => +[] 
String  => []+[] 
Boolean  => ![] 
Function => []["filter"] 
eval  => []["filter"]["constructor"](CODE)() 
window  => []["filter"]["constructor"]("return this")()