function foo(x=5,y){
   return [x,y];
}
const ret = foo(5);
console.log(ret);

What's an object oriented way to become wealthy?

let status = "admin";

switch (status) {
  case "user":
    let message = "Welcome, user!";
    console.log(message);
    break;

  case "admin":
    const message = "Welcome, admin!";
    console.log(message);
    break;

  case "guest":
    var message = "Welcome, guest!";
    console.log(message);
    break;

  default:
    console.log("No match");
}

There should be a standard way to embed Audio and Video directly inside a PDF.
Imagine reading something and being able to play an 🎧 audio explanation or 🎥 video right there on the page.
And ik ik, PDFs technically support multimedia through things like Adobe Acrobat
But I'm talking about universal support open the PDF normally in Chrome, Firefox, your phone's PDF viewer, whatever, and it just works.