JavaScript Invisible Code

ghost.js

// Transforms any text to a zero width string thus
// making it invisible
// Call with 2nd param true to decode invisible text
// into original
// ------------------------------
// masterleo@gmail.com 18/11/2021

const ghost = ($,ǃ) => (($,ǃ,g,h,o,s,t)=>(
    [g][g][g]('λ={'+`${[][g](124)}`
    [o](/./g,(λ,x)=>λ[g][h](x))
    [o](/[^a-z\d+/=]/gi,'')
    [o](/./g,(λ,x)=>`"${λ}":"${s=λ[g][h](8288+x/16|0,8288+x%16)}","${s}":"${λ}",`)
    [o](/,$/,'};'))(), t=λ,
        ǃ.at() == 'e' ?
        btoa(window[ǃ]($))[o](/./g,λ=>t[λ]) :
        window[ǃ](atob($[o](/../g,λ=>t[λ])))
    ))
    ($,(ǃ?'de':'en')+'codeURI','constructor','fromCodePoint','replace');

//make sample code invisible
let hidden = ghost("open`https://youtu.be/dQw4w9WgXcQ`");
console.log(hidden);

//reveal hidden code
let shown = ghost(hidden, true);
console.log(shown, true);

// execute
\u0065val(shown);