code: function findSuffixes (name, files) {
    let result = [];
    for (let file of files) {
      const regex = new RegExp (`${name}\\.([a-zA-Z]+)\\.js`);
      const match = file.match (regex);
      if (match) {
        if (file.startsWith (name)) {
          result.push (match[1]);
        }
      }
    }
    return result;
  }
docs: ***************************************************************************