Calculate String hash - Node.js String

Node.js examples for String:String Value

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Description

Calculate String hash

Demo Code

String.prototype.hashCode = function(){
  var hash = 0, i, char;
  if (this.length == 0) return hash;
  for (i = 0, l = this.length; i < l; i++) {
    char  = this.charCodeAt(i);//w ww. ja v  a2  s  .c om
    hash  = ((hash<<5)-hash)+char;
    hash |= 0; // Convert to 32bit integer
  }
  return hash;
};

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