Youtube subscriptions to RSS & OPML

youtube_to_rss.js

// I modified the code I found on Duc's site here:
// https://hoanganhduc.github.io/blog/2021/04/16/youtube-subscriptions-to-rss-feeds/
// This might and will break at the slightest touchup made by the devs @ Youtube

// instructions:
// 1. navigate to https://www.youtube.com/feed/channels
// 2. scroll all the way down
// 3. paste all the code into the console 
// 4. copy the ouput and paste it at the following website 
// in order to generate OPML https://opml-gen.ovh/ 


x = $$("#main-link.channel-link").map( el => {
    ytb = "https://www.youtube.com/feeds/videos.xml?";
    usr = "/user/";
    chn = "/channel/";
    i = el.pathname.indexOf(usr);
    j = el.pathname.indexOf(chn);

    // unexpected input
    if (i < 0 && j < 0) return "broken: " + el.pathname;
    
    // user
    if (j < 0) return ytb + "user=" + el.pathname.substring(usr.length);
    // channel
    return ytb + "channel_id=" + el.pathname.substring(chn.length);

});

console.log(x.join("\n"));