Update dictionary.js

var rand = require('random-js');

var fs = require('fs')

var dictionary;

var randomEngine;

var randomEngine = rand.engines.nativeMath;

var random;

var DictionaryGenerator = function(options) {

  //Load dictionary

  fs.readFile(options.path, 'utf8', (err,data) => {

    if(err) throw err;

    dictionary = data.split(',');

    this.dictionary = data.split(',');

    //Remove any non alpha-numeric characters

    for(var i = 0; i < dictionary.length; i++){

      dictionary[i] = dictionary[i].replace(/\W/g,'');

    }

    for(var i = 0; i < this.dictionary.length; i++)

      this.dictionary[i] = this.dictionary[i].replace(/\W/g,'');

    random = rand.integer(0,dictionary.length);

    randomEngine = rand.engines.nativeMath;

    this.random = rand.integer(0, this.dictionary.length);

    });

};

DictionaryGenerator.prototype.createKey = function(keyLength) {

  var text = '';

  for(var i = 0; i < keyLength; i++)

    text += dictionary[random(randomEngine)];

    text += this.dictionary[random(randomEngine)];

  return text;

};