How to decode incomprehensible encoding in JS?

Question

JavaScript

Faced with this

"($\\" + $y.__$ + $y.$_$ + $y.$_$ + $y.$$$_ + "\\" + $y.__$ + $y.$$_ + $y._$$ + "\\" + $y.__$ + $y.$$_ + $y._$$ + "))};" + $y.__ + $y.$$$_ + "\\" + $y.__$ + $y.$_$ + $y.$_$ + "\\" + $y.__$ + $y.$$_ + $y.___ + (![] + "")[$y._$_] + $y.$_$_ + $y.__ + $y.$$$_ + "\\" + $y.__$ + $y.__$ + $y.__$ + "\\" + $y.__$ + $y.$_$ + $y.$$_ + "\\" + $y.__$ + $y.$_$ + $y.__$ + $y.__ + "();" + "\"")())();
};

Can anyone help decipher? here is a link to the .js file avatarworld.at.ua/js/ui.js

Answer 1

ordinary primitive obfuscation. A string is simply made up of pieces of the hash table $y.

Answer 2

You can decipher, but little will be understood, because. Variable names cannot be returned.
Try to decode here alexvaleev.ru/javascript-optimizator/

Answer 3

pastebin.com/4akFdBkg