N02870941

#!/usr/lib/python
# -*- coding: utf-8 -*-
#
#       This is a re-implementation of Python's timsort in Python
#       itself. This is purely for learning purposes. :)
#       References: [
#           https://en.wikipedia.org/wiki/Timsort,
#           http://wiki.c2.com/?TimSort
#       ]
#

N02870941

var detectBackOrForward = function(onBack, onForward) {
  hashHistory = [window.location.hash];
  historyLength = window.history.length;

  return function() {
    var hash = window.location.hash, length = window.history.length;
    if (hashHistory.length && historyLength == length) {
      if (hashHistory[hashHistory.length - 2] == hash) {
        hashHistory = hashHistory.slice(0, -1);
        onBack();