gistfile1.js

function linkGiftCards(giftCards, customerId, callback) {
  function linkCard(card, id, callback2) {
    // do some stuff
    callback2();
  }

  async.each(giftCards, function (card, callback2) {
    linkCard(card, customerId, callback2);
  }, function (err) {
    if (err)
      log.info('>>> Completed looking up 10 gift cards as anonymous uer')
    callback();
  });
}