Или вот тоже самое только без ключевых слов совсем:
___ = '';____ = !![]|[];_____ = ~!![];____________ = !![];_____ = ~____________;____ = ____________|[];______ = (___ + {});________ = (___ + ____________);_________ = (____________)[![]];__________ = ~(_____ )+____;__ = ______[__________ * __________ + ____________] + ______[____] + (___ + (_________))[____] + (___ + ![])[~(_____ ) +____ + ____________] + ________[+[]] + ________[____] + (___ + (_________))[+[]] + ______[__________ * __________ + ____________] + ________[+[]] + ______[____] + ________[____];[][__][__]('_', ((___ + +{})[~(_____ )] + (![] + ___)[~(_____ )+____] + (___ + !!(____))[~(_____ )+~(_____ )+____] + (___ + !!(____))[____] + (___ + !!(____))[+[]]) + '(_)')(____); //alert(1)
Разберите, тут все очень просто.