text: 'use strict';
  
  var redis = require('redis');
  var client = redis.createClient();
  
  // mget: Get the values of all the given keys
  
  client.set('key1', 'Hello', function (err, res) {
      console.log(res); // OK
  });
  
  client.set('key2', 'World', function (err, res) {
      console.log(res); // OK
  });
  
  client.mget('key1', 'key2', 'nonexisting', function (err, res) {
      console.log(res); // [ 'Hello', 'World', null ]
  });
  