jellyfin-web/dashboard-ui/scripts/playlist.js

(function (window) {

    function playlist() {
        var self = this;

        self.queue = [];

        self.add = function (item) {

            queue.push(item);
        };

        self.remove = function (index) {

            queue.splice(index, 1);
        };

        self.play = function (index) {

            MediaPlayer.play(queue[index]);
            queue.shift();
        };

        return self;
    }

    window.Playlist = new playlist();
})(window);