text: const uniqueRandomArray = require('unique-random-array');
  const philosopherNames = require('./philosophers.json');
  const getRandomItem = uniqueRandomArray(philosopherNames);
  
  module.exports = {
    all: philosopherNames,
    random: random
  };
  
  function random(number) {
    if (number === undefined) {
      return getRandomItem();
    } else {
      var randomItems = [];
      for (var i = 0; i < number; i += 1) {
        randomItems.push(getRandomItem());
      }
      return randomItems;
    }
  }
  