How to copy files and folders in Node.js?

copyDir.js

/**
 * Copy the src folder to the dest folder
 * @param {string} src
 * @param {string} dest
 * @param {function} callback
 */
const copyDir = (src, dest, callback) => {
  const copy = (copySrc, copyDest) => {
    fs.readdir(copySrc, (err, list) => {
      if (err) {
        callback(err);
        return;
      }
      list.forEach((item) => {
        const ss = path.resolve(copySrc, item);
        fs.stat(ss, (err, stat) => {
          if (err) {
            callback(err);
          } else {
            const curSrc = path.resolve(copySrc, item);
            const curDest = path.resolve(copyDest, item);

            if (stat.isFile()) {
              // file, copy directly
              fs.createReadStream(curSrc).pipe(fs.createWriteStream(curDest));
            } else if (stat.isDirectory()) {
              // directory, recursively
              fs.mkdirSync(curDest, { recursive: true });
              copy(curSrc, curDest);
            }
          }
        });
      });
    });
  };

  fs.access(dest, (err) => {
    if (err) {
      // If the target directory does not exist, create it
      fs.mkdirSync(dest, { recursive: true });
    }
    copy(src, dest);
  });
};