Nodejs String Hash hashCode()

Method Source Code

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);//from w ww  .j a  v  a  2 s  .co m
        hash  = ((hash << 5) - hash) + chr;
        hash |= 0; // Convert to 32bit integer
    }
    
    return hash;
};

Related

1. hashCode()

   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;
   ...
   

2. hashCode()

   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;
   ...
   

3. hashCode()

   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;
   ...
   

4. hashCode()

   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;
   ...
   

5. hashCode()

   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; 
   ...
   

6. hashCode(s)

   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; 
   ...
   

7. hashify()

   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;
   

8. hashtaggery()

   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]);
   ...
   

9. hashtags()

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