string-hash and normal hash

stringhash.js

function slow_hash(str) {
  var hash = 0, i, chr, len;
  if (str.length === 0) return hash;
  for (i = 0, len = str.length; i < len; i++) {
    chr   = str.charCodeAt(i);
    hash  = ((hash << 5) - hash) + chr;
    hash |= 0; // Convert to 32bit integer

    // max of integer in javascript is 2^53
    // http://stackoverflow.com/questions/307179/
    // plus 2^31 to prevent it negative
    hash += Math.pow(2, 31)
  }
  return hash;
}

var debug = require('debug')('hash')
var hash = require('string-hash')

var string = "548ffbb54fbb9d19005807f7"
debug(string)
debug(slow_hash(string))

var anotherString = "548ffbb54fbb9d19005807f7"
debug(anotherString)
debug(hash(anotherString))