Nodejs Utililty Methods String Hash

String.prototype.hashCode = function() {
  var hash = 0;
  if(this.length == 0) return hash;
  for(i = 0; i < this.length; i++) {
    char = this.charCodeAt(i);
    hash = ((hash<<5)-hash)+char;
    hash = hash & hash;
  return hash;
...

String.prototype.hashCode = function() {
  var hash = 0, i, chr, len;
  if (this.length == 0) return hash;
  for (i = 0, len = this.length; i < len; i++) {
    chr   = this.charCodeAt(i);
    hash  = ((hash << 5) - hash) + chr;
    hash |= 0; 
  return hash;
...

String.prototype.hashCode = function(){
  var hash = 0;
  if (this.length === 0) return hash;
  for (i = 0; i < this.length; i++) {
    chr = (this.charCodeAt(i) * 2.2); 
    hash = ((hash<<32)-hash)+chr; 
    hash = hash & hash; 
  return hash;
...

String.prototype.hashCode = function() {
  var hash = 0;
  if (this.length == 0) return hash;
  for (i = 0; i < this.length; i++) {
    char = this.charCodeAt(i);
    hash = ((hash << 5) - hash) + char;
    hash = hash & hash; 
  return hash;
...

String.prototype.hashCode = function () {
    var hash = 0;
    if (this.length === 0) {
        return hash;
    for (i = 0; i < this.length; i++) {
        char = this.charCodeAt(i);
        hash = ((hash<<5)-hash)+char;
        hash = hash & hash; 
...

var Commons = function() {};
String.prototype.hashCode = function() {
    var aux = "v1.0" + this;
    var hash = 0, i, chr, len;
    if (this.length === 0) return hash;
    for (i = 0, len = aux.length; i < len; i++) {
        chr   = aux.charCodeAt(i);
        hash  = ((hash << 5) - hash) + chr;
        hash |= 0; 
...

String.prototype.hashCode = function(s) {
  var hash = 0;
  if (this.length === 0) {
    return hash;
  for (var i = 0; i < this.length; i++) {
    var character = this.charCodeAt(i);
    hash = ((hash << 5) - hash) + character;
    hash = hash & hash; 
...

String.prototype.hashify = function() {
  var o = {};
  (this + this[0]).split('').reduce(function(k, v) {
    o[k] = k in o ? [].concat(o[k], v): v;
    return v;
  });
  return o;

String.prototype.hashtaggery = function(){
  var sentenceArray = this.split(' ');
  var hashArray = [];
  console.log(this.split(' '));
  for (var i = 0; i < sentenceArray.length; i++) {
    console.log(sentenceArray[i][0]);
    if (sentenceArray[i][0] == "#") {
      console.log(sentenceArray[i]);
      hashArray.push(sentenceArray[i]);
...

String.prototype.hashtags = function(){
  var myArray = []
  this.split(' ').forEach(function(word){
    if(word[0] === "#"){
      myArray.push(word)
  })
  return myArray