https://fastued2.jia.com/js/common/cookie.js

1/*!
2 * jQuery Cookie Plugin v1.4.1
3 * https://github.com/carhartl/jquery-cookie
4 */
5(function (factory) {
6	if (typeof define === 'function' && define.amd) {
7		// AMD (Register as an anonymous module)
8		define(['jquery'], factory);
9	} else if (typeof exports === 'object') {
10		// Node/CommonJS
11		module.exports = factory(require('jquery'));
12	} else {
13		// Browser globals
14		factory(jQuery);
15	}
16}(function ($) {
17
18	var pluses = /\+/g;
19
20	function encode(s) {
21		return config.raw ? s : encodeURIComponent(s);
22	}
23
24	function decode(s) {
25		return config.raw ? s : decodeURIComponent(s);
26	}
27
28	function stringifyCookieValue(value) {
29		return encode(config.json ? JSON.stringify(value) : String(value));
30	}
31
32	function parseCookieValue(s) {
33		if (s.indexOf('"') === 0) {
34			// This is a quoted cookie as according to RFC2068, unescape...
35			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
36		}
37
38		try {
39			// Replace server-side written pluses with spaces.
40			// If we can't decode the cookie, ignore it, it's unusable.
41			// If we can't parse the cookie, ignore it, it's unusable.
42			s = decodeURIComponent(s.replace(pluses, ' '));
43			return config.json ? JSON.parse(s) : s;
44		} catch (e) {}
45	}
46
47	function read(s, converter) {
48		var value = config.raw ? s : parseCookieValue(s);
49		return $.isFunction(converter) ? converter(value) : value;
50	}
51
52	var config = $.cookie = function (key, value, options) {
53
54		// Write
55
56		if (arguments.length > 1 && !$.isFunction(value)) {
57			options = $.extend({}, config.defaults, options);
58
59			if (typeof options.expires === 'number') {
60				var days = options.expires,
61					t = options.expires = new Date();
62				t.setMilliseconds(t.getMilliseconds() + days * 864e+5);
63			}
64
65			return (document.cookie = [
66				encode(key), '=', stringifyCookieValue(value),
67				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
68				options.path ? '; path=' + options.path : '',
69				options.domain ? '; domain=' + options.domain : '',
70				options.secure ? '; secure' : ''
71			].join(''));
72		}
73
74		// Read
75
76		var result = key ? undefined : {},
77			// To prevent the for loop in the first place assign an empty array
78			// in case there are no cookies at all. Also prevents odd result when
79			// calling $.cookie().
80			cookies = document.cookie ? document.cookie.split('; ') : [],
81			i = 0,
82			l = cookies.length;
83
84		for (; i < l; i++) {
85			var parts = cookies[i].split('='),
86				name = decode(parts.shift()),
87				cookie = parts.join('=');
88
89			if (key === name) {
90				// If second argument (value) is a function it's a converter...
91				result = read(cookie, value);
92				break;
93			}
94
95			// Prevent storing a cookie that we couldn't decode.
96			if (!key && (cookie = read(cookie)) !== undefined) {
97				result[name] = cookie;
98			}
99		}
100
101		return result;
102	};
103
104	config.defaults = {};
105
106	$.removeCookie = function (key, options) {
107		// Must not alter options, thus extending a fresh object...
108		$.cookie(key, '', $.extend({}, options, {
109			expires: -1
110		}));
111		return !$.cookie(key);
112	};
113
114}));