playlist.js

  // Shows the playlist
  name: '!playlist',
  help: 'Skip the song if moderator, else place a vote to skip the song.',
  types: ['message'],
  regex: /^(!|\/)playlist$/,
  action: function( chat, stanza ) {
    let player = getPlayer( chat );
    let playlist = getPlaylist( chat );

    let tracks = [];
    let trackIndex = 1;

    for(let track of playlist) {
      tracks.push(trackIndex++ + ': ' + track.title)
    }

    const maxTracksPerMessage = 21;

    let chunks = 1;
    let chunker = (tracks) => {
      if(tracks.length > maxTracksPerMessage) {
        let start = 0;
        let end = start == tracks.length ? tracks.length : maxTracksPerMessage;
        chunks = Math.ceil(tracks.length / maxTracksPerMessage);
        while(chunks > 0) {
          let chunk = tracks.slice(start, end).join('\n');
          chat.sendMessage( chunk );
          start+=maxTracksPerMessage;
          end+=maxTracksPerMessage;
          chunks--;
        }
      }
      else {
        let prettyPlaylist = tracks.join('\n');
        chat.sendMessage( prettyPlaylist );
      }
    }

    chunker(tracks);
  }