Parse youtube history file

index.js

import fs from "fs";
const viewHistory = JSON.parse(fs.readFileSync("./data/view-history.json"));

function getVideosById(videos) {
  let videosById = {};

  videos.forEach((video) => {
    let regex = /https:\/\/www\.youtube\.com\/watch\?v=(.*)/;
    let title = video.title.substring(18).replace(/\s+/, " ");

    if (video.titleUrl && regex.test(video.titleUrl)) {
      let videoId = regex.exec(video.titleUrl)[1];

      if (videosById.hasOwnProperty(videoId)) {
        videosById[videoId].count += 1;
      } else {
        videosById[videoId] = {
          title: title,
          id: videoId,
          videoUrl: video.titleUrl,
          count: 1,
        };
      }
    }
  });

  return videosById;
}

let videos = getVideosById(viewHistory);

let top40 = Object.values(videos)
  .sort((a, b) => b.count - a.count)
  .slice(0, 40);

console.log(top40);