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div的scrollTop定位,如何清空它的cookie值

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div的scrollTop定位,如何清空它的cookie值

qq_花开花谢_0 2018-12-06 16:45:04
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2 回答

?
慕勒3428872

div的scrollTop定位
跟cookie值有什么关系
难道是cookie里面存了scrollTop定位的值?

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1 /**
2 * Cookie plugin
3 *
4 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
5 * Dual licensed under the MIT and GPL licenses:
6 * http://www.opensource.org/licenses/mit-license.php
7 * http://www.gnu.org/licenses/gpl.html
8 *
9 */
10
11 /**
12 * Create a cookie with the given name and value and other optional parameters.
13 *
14 * @example $.cookie('the_cookie', 'the_value');
15 * @desc Set the value of a cookie.
16 * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
17 * @desc Create a cookie with all available options.
18 * @example $.cookie('the_cookie', 'the_value');
19 * @desc Create a session cookie.
20 * @example $.cookie('the_cookie', null);
21 * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
22 * used when the cookie was set.
23 *
24 * @param String name The name of the cookie.
25 * @param String value The value of the cookie.
26 * @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
27 * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
28 * If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
29 * If set to null or omitted, the cookie will be a session cookie and will not be retained
30 * when the the browser exits.
31 * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
32 * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
33 * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
34 * require a secure protocol (like HTTPS).
35 * @type undefined
36 *
37 * @name $.cookie
38 * @cat Plugins/Cookie
39 * @author Klaus Hartl/klaus.hartl@stilbuero.de
40 */
41
42 /**
43 * Get the value of a cookie with the given name.
44 *
45 * @example $.cookie('the_cookie');
46 * @desc Get the value of a cookie.
47 *
48 * @param String name The name of the cookie.
49 * @return The value of the cookie.
50 * @type String
51 *
52 * @name $.cookie
53 * @cat Plugins/Cookie
54 * @author Klaus Hartl/klaus.hartl@stilbuero.de
55 */
56 jQuery.cookie = function(name, value, options) {
57 if (typeof value != 'undefined') { // name and value given, set cookie
58 options = options || {};
59 if (value === null) {
60 value = '';
61 options.expires = -1;
62 }
63 var expires = '';
64 if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
65 var date;
66 if (typeof options.expires == 'number') {
67 date = new Date();
68 date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
69 } else {
70 date = options.expires;
71 }
72 expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
73 }
74 // CAUTION: Needed to parenthesize options.path and options.domain
75 // in the following expressions, otherwise they evaluate to undefined
76 // in the packed version for some reason...
77 var path = options.path ? '; path=' + (options.path) : '';
78 var domain = options.domain ? '; domain=' + (options.domain) : '';
79 var secure = options.secure ? '; secure' : '';
80 document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
81 } else { // only name given, get cookie
82 var cookieValue = null;
83 if (document.cookie && document.cookie != '') {
84 var cookies = document.cookie.split(';');
85 for (var i = 0; i < cookies.length; i++) {
86 var cookie = jQuery.trim(cookies[i]);
87 // Does this cookie string begin with the name we want?
88 if (cookie.substring(0, name.length + 1) == (name + '=')) {
89 cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
90 break;
91 }
92 }
93 }
94 return cookieValue;
95 }
96 };
这是jquery cookie 插件 里面可以设置cookie过期时间
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反对 回复 2019-01-21
?
哈士奇WWW

cookie可以保存值啊

查看完整回答
反对 回复 2019-01-21

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