Javascript-obfuscator: [Feature Request] Obfuscate Global Variables

[BlackYuzia]

Description

How we know we have global variables like console, window, alert and etc.

If I obfuscate some code, for example:

const date = new Date(); 
let kruzya = 0;
kruzya++;
if (kruzya >= 1) console.log(`${kruzya} is more like 0`, date);  // Output number (1) and timestamp (date)

we get:

const O = ['log', 'ike 0', 'ore l', ' is m'];
(function (j, u) {
    const k = function (C) {
        while (--C) {
            j['push'](j['shift']());
        }
    };
    k(++u);
}(O, -0x1 * -0x10fd + -0x92 + -0xf5b));
const j = function (u, s) {
    u = u - (-0x1 * -0x10fd + -0x92 + -0x106b);
    let E = O[u];
    return E;
};
const u = function (s, E) {
        return j(s - '0x3c8', E);
    },
    date = new Date();
let kruzya = -0x92 + 0x771 + -0x6df;
kruzya++;
if (kruzya >= 0x1c * -0xd1 + -0x92 + 0x176f) console[u('0x3c8')](kruzya + (u('0x3cb') + u('0x3ca') + u('0x3c9')), date);

but some code we didn't obfuscate. For example: new Date(), console etc.
_What about obfuscate this too?_

Why?
If I have debug in my code user can check by code what exact is wrong or etc.
UPD: Yep, if I just disable console... I can didn't obfuscate console, but what if I really need it?

This is more question like suggestion but ... what about create method to obfuscate global methods and/or variables? :eyes:

[BlackYuzia]

Example of obfuscate

const obj = ["Date", "console", "log"];

function getVariable(index) {
  return obj[index];
}

const date = new window[getVariable(0)]; // just example. This is typo! 
const myHidedConsole = window[getVariable(1)];
myHidedConsole[getVariable(2)]("some debug info");

[sanex3339]

So the suggestion is to transform

new Date()

into

new window['Date']()

After that it can be moved to the strings array

[BlackYuzia]

Yep, something like that.
If you know a better choice do it better :eyes:

[sanex3339]

Like this idea. Will try to implement it in the feature.

[BlackYuzia]

Some modern idea:

```
window["0x1"] // bad because we was see what this can be global variable.
windowHandler["0x1"] // better because we see only function.

function windowHandler(arg) // can have random name
{
return window[arrayWithWords[arg]]; // can be else ... just for example
}

[BlackYuzia]

@sanex3339 tagging. If you didn't see that.