Code thêm nhiều video Youtube vào một playlist.

youtube-playlist-maker.js

/* Developed by Juno_okyo */
(function(e, b) {
  function f(a, b) {
    var d = fetch,
      e = "sej=" + encodeURIComponent(JSON.stringify({
        playlistEditEndpoint: {
          playlistId: a,
          actions: [{
            addedVideoId: b,
            action: "ACTION_ADD_VIDEO"
          }]
        },
        clickTrackingParams: "juno_okyo_j2team_community",
        commandMetadata: {
          webCommandMetadata: {
            url: "/service_ajax",
            sendPost: !0
          }
        }
      })) + "&session_token=",
      f = encodeURIComponent;
    var c = /"XSRF_TOKEN":"([^"]+)"/.exec(document.head.innerHTML);
    c = null !== c ? c[1] : !1;
    return d("https://www.youtube.com/service_ajax?name=playlistEditEndpoint", {
      method: "POST",
      credentials: "same-origin",
      headers: {
        "content-type": "application/x-www-form-urlencoded"
      },
      body: e + f(c)
    })
  }

  function d() {
    var a = b.pop();
    a = (new URL(a)).searchParams.get("v");
    f(e, a).then(function(a) {
      0 < b.length && setTimeout(d, 500)
    })
  }
  d()
})('YOUR_PLAYLIST_ID', 'YOUR_VIDEO_URLS_IN_ARRAY');