yt-remove-full-playlist.js

window.onbeforeunload = (e) => {
  return "Dude, are you sure you want to leave? Think of the kittens!";
}

const bts = document.querySelectorAll("[aria-label='Delete']")

const b = [...bts];

for(let bt of b) {
  try {
    bt.click();
    await new Promise((res) => setTimeout(res, 100));
  } catch(e) {
    console.log(e);
  }
}