index.js

/**
 * Takes an array of card scan logs, where each log contains the name of the employee
 * and the type of log (enter or exit).
 * The log begins at the beginning of the day and ends at the end of the day.
 * The room is physically clear at the start and end of each day.
 * Any bad logs are a result of a faulty card or card reader, however each entry is true.
 * Therefore, in the case of an exit with no preceding entry, the employee should
 * be returned in the badEntries array, to note that their card did not read upon
 * entry of the room.
 * @param log Array<{employee: string, scan: 'enter' | 'exit'}>
 * @returns {[Array<badExitLogEmployees: string>, Array<badEntryLogEmployees: string>>]}
 */
module.exports = (log) => {
  return [[], []];
};