function transformData(rawData) {
  // check if no data
  if (!rawData) {
    return [];
  }

  // check for specific case
  if (rawData.length == 1) {
    return [];
  }

  // actual function code goes here
  return rawData.map((item) => item);
}

/*The bouncer pattern by Rik Schennink [http://rikschennink.nl/thoughts/the-bouncer-pattern/]*/