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tomoya92
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为什么这个能出来 hello world 呢?

  •  
  •   tomoya92 · 2017-08-28 10:21:56 +08:00 · 2147 次点击
    这是一个创建于 2669 天前的主题,其中的信息可能已经有所发展或是发生改变。
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   

    7 条回复    2017-08-29 09:16:23 +08:00
    coderluan
        1
    coderluan  
       2017-08-28 10:27:04 +08:00
    这个就是一堆 0 和 1,一堆 0 和 1 能出 hello world 你应该知道的。
    jinyang656
        2
    jinyang656  
       2017-08-28 10:46:02 +08:00   ❤️ 4
    JSFuck
    zj299792458
        3
    zj299792458  
       2017-08-28 11:52:38 +08:00 via iPhone
    这啥语言
    misaka20038numbe
        4
    misaka20038numbe  
       2017-08-28 14:37:50 +08:00
    (!![]+[])[+!![]] = ('true')[1] = r
    ([][[]]+[])[!+[]+!![]+!![]] = ('undefined')[3] = e
    ([]+[]['sort']['constructor']('return location')()) = 'https://www.v2ex.com/t/386264#reply3'
    []['sort']['constructor']('return escape')()('[') = %5B
    []['sort']['constructor']('return unescape')()('%77') = 'w'
    其他同理
    ([]+[]['sort']['constructor']('return location')())[0]+'ello '+[]['sort']['constructor']('return unescape')()('%77')+'orld'+[]['sort']['constructor']('return unescape')()('%21')
    =
    ([]+[]['sort']['constructor']('return location')())[0]+'ello '+'w'+'orld'+'!'
    =
    'h'+'ello '+'w'+'orld'+'!'
    jevirs
        5
    jevirs  
       2017-08-28 17:46:15 +08:00
    [] == ![]
    // true

    因缺斯汀
    TakWolf
        6
    TakWolf  
       2017-08-28 17:53:51 +08:00
    tomoya92
        7
    tomoya92  
    OP
       2017-08-29 09:16:23 +08:00
    @TakWolf
    @jinyang656 还有这样的网站,挺好玩的,不过

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

    这东西为啥浏览器会认呢?
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