https://tehillimtoday.com/wp-content/themes/understrap/js/hash.js?ver=0.1

1/**
2 * hash.js
3 *
4 * Copyright (C) 2012 Emmanuel Garcia
5 * MIT Licensed
6 *
7 * ****************************************
8 *
9 * Hash.pushState(true);
10 *
11 * Hash.on('/page/([0-9]+)$',
12 *	{yep: function(path, parts) { }, nop: function() { }},
13 *	'Page $1');
14 *
15 * Hash.go('/page/1');
16 **/
17
18(function() {
19
20'use strict';
21
22var hashes = {},
23	regexp = {},
24	history = [],
25	freq = 100,
26	num = 0,
27	pushState = false,
28	timer = null,
29	currentUrl = null,
30
31	freeze = function(obj) {
32		if (Object.freeze) return Object.freeze(obj);
33		return obj;
34	},
35
36	getHashParts = function() {
37		return window.location.href.split('#');
38	},
39
40	startTimer = function() {
41		
42		if (!timer)
43			timer = setInterval(function() {
44				if (num>0 && currentUrl!=window.location.href) {
45					currentUrl = window.location.href;
46					window.Hash.check();
47				}
48			}, freq);
49
50	},
51
52	stopTimer = function() {
53
54		if (timer) {
55			clearInterval(timer);
56			timer = null;
57		}
58
59	};
60
61window.Hash = freeze({
62
63		pushState: function(yes) {
64
65			if (window.history && window.history.pushState)
66				pushState = yes;
67
68			return this;
69		},
70
71		fragment: function() {
72			
73			var hash = getHashParts();
74			return (pushState) ?
75				window.location.pathname + ((hash[1]) ? '#' + hash[1] : '')
76				: hash[1] || '';
77
78		},
79		
80		get: function(path, params) {
81			
82			var p, fragment = '', parameters = [];
83
84			for(p in params) {
85				if (!Object.prototype.hasOwnProperty(p))
86					continue;
87				parameters.push(encodeURIComponent(p) + '=' + encodeURIComponent(params[p]));
88			}
89
90			if (parameters.length>0)
91				parameters = '?' + parameters.join('&');
92		
93			return (pushState) ? path + parameters :
94				getHashParts()[0] + '#' + path + parameters;
95
96		},
97
98		go: function(hash, params) {
99
100			if (this.fragment()!=hash) {
101				var to = this.get(hash, params);
102
103				if (pushState)
104					window.history.pushState(null, document.title, to);
105				else
106					window.location.href = to;
107				}
108			
109			return this;
110		},
111
112		update: function () {
113			
114			currentUrl = window.location.href;
115			return this;
116
117		},
118
119		on: function(hash, callback, title) {
120
121			if (!hashes[hash])
122				hashes[hash] = {title: title, listeners: []};
123			
124			hashes[hash].listeners.push(callback);
125			num++;
126			startTimer();
127
128			return this;
129		},
130
131		check: function() {
132
133			var i,
134				hash,
135				parts,
136				fragment = this.fragment();
137
138
139			for (hash in hashes) {
140				if (!Object.prototype.hasOwnProperty.call(hashes, hash))
141					continue;
142
143				hashes[hash].regexp = hashes[hash].regexp || new RegExp(hash);
144
145				if ((parts = hashes[hash].regexp.exec(fragment))) {
146					if (hashes[hash].title)
147						document.title = hashes[hash].title;
148
149					for (i = 0; i<hashes[hash].listeners.length; i++)
150						if (hashes[hash].listeners[i].yep)
151							hashes[hash].listeners[i].yep(fragment, parts);
152				} else {
153					for (i = 0; i<hashes[hash].listeners.length; i++)
154						if (hashes[hash].listeners[i].nop)
155							hashes[hash].listeners[i].nop(fragment);
156				}
157
158			}
159
160			return this;
161		}
162});
163
164})();