Embedded content that plays random videos back to back after one video is finished playing

I found this javascript code on Stack Overflow. I believe it is from a user named “Obsidian Age.” It has worked flawlessly for me, but I was wondering if this code could be modified so that each time a random video ends, it continues to play another random video, like a loop.

In the example, I only show three sample embedded videos, but I plan on adding more videos to the playlist. Thank you very much in advance.

    var playlist = [
  "https://www.youtube.com/embed/qXYb8R3_B0k",
  "https://www.youtube.com/embed/Gi1P6UFTioQ",
  "https://www.youtube.com/embed/RDZ0SdlKPXU",
];

var myFrame = document.getElementsByClassName("frame")[0];

function getRandomUrl(myFrame) {
  var index = Math.floor(Math.random() * playlist.length);
  var url = playlist[index];
  myFrame.src = url;
}

function codeAddress() {
  getRandomUrl(myFrame);
}

codeAddress();

console.log(myFrame.src);

<iframe class="frame" src="" style="width:640px; height:360px"></iframe>