Hexadecimal in JavaScript , How ?!

Question

I see many pro coders using hexadecimal values purely in their <script> tags . it's pure hexadecimal values 😭😭. I don't get it . I want to know how this works . The below codes have an example how
https://code.sololearn.com/WA11LWquI0nF/?ref=app

Answer 1

its pretty simple obfuscation. but i'm not sure about the tool

here's how, take your code as a string, loop trough them. get the char code, convert the charcode to hex then add necessary prefix like % or \

because how simple it is, i bet there's another layer of obfuscation under it

Answer 2

Actually that's not very comples and hard concept.she is just decode a hexadecimal string via unscape function and it returns a new string then she execute the retuened string via eval.

if you see code carefully you will see unscape and eval funcrion as i said

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/unescape

Answer 3

Put easy "0x" before your number.

console.log(0x12345678);

Answer 4

You can code and decode html file to hexadecimal or hexadecimal to html using this

http://www.spidytechnology.com/html_encoder_and_decoder.html