Алексей Кондаков

const hallsObj = {};
export default (array, index) => {
  array.map(el => {
    if (typeof dataConverter(el.tables) === "undefined") {
      hallsObj[el.hallId] = [
        {
          id: el.bookingId + el.restId,
          title: "0",
          value: "Стол не может быть выбран",
          hallHasNoTables: true
        }
      ];
    } else {
      hallsObj[el.hallId] = dataConverter(el.tables);
    }
  });
  if (!index || typeof hallsObj[index] === "undefined") return hallsObj;
  return hallsObj[index];
};