jquery cookie usage (Get cookie value, delete cookie)

Cookie has the specified cookie action class in jquery, let me first describe some of the problems we use when using cookies to manipulate classes, and then describe the correct ways to use them.

An incorrect value occurred when using jquery to manipulate cookies:

The result is that the cookie has four different attributes:
Name, content, domain, path

The code is as follows	Copy Code
$.cookie (' The_cookie '); Read cookies $.cookie (' The_cookie ', ' the_value '); Storing cookies $.cookie (' The_cookie ', ' The_value ', {expires:7}); Store a cookie with a 7-day period $.cookie (' The_cookie ', ', {Expires:-1}); Delete Cookies

Use:

The code is as follows	Copy Code
$.cookie ("Currentmenuid", MenuID);

The domain and path are not specified.
All different cookies are generated when the domain and path are different

The code is as follows	Copy Code
$.cookie ("Currentmenuid");

Problems occur when values are taken.

So

The code is as follows	Copy Code
$.cookie ("Currentmenuid", "MenuID", {path: "/"});

to overwrite. A cookieid corresponds to a value in the same field.

Let's take a look at an example

The path setting for cookies needs to be noted that if path: '/' is not set, path is automatically set according to the directory [e.g.: Http://www.xxx.com/user/,path will be set to '/user ']

The code is as follows

Copy Code

$.extend ({ /** 1. Set the value of the cookie to set the value of the name variable to Example $.cookie (' name ', ' value '); 2. Create a new cookie including the validity path domain name, etc. Example $.cookie (' name ', ' value ', {expires:7, path: '/', Domain: ' jquery.com ', secure:true}); 3. Create a new cookie Example $.cookie (' name ', ' value '); 4. Delete a cookie Example $.cookie (' name ', null); 5. Take a cookie (name) value to MyVar var account= $.cookie (' name '); **/ Cookiehelper:function (name, value, options) { if (typeof value! = ' undefined ') {//name and value given, set cookie options = Options | | {}; if (value = = = null) { Value = '; Options.expires =-1; } var expires = '; if (Options.expires && (typeof options.expires = = ' Number ' | | options.expires.toUTCString)) { var date; if (typeof options.expires = = ' number ') { Date = new Date (); Date.settime (Date.gettime () + (Options.expires * 24 * 60 * 60 * 1000)); } else { date = Options.expires; } expires = '; Expires= ' + date.toutcstring (); Use expires attribute, Max-age isn't supported by IE } var path = Options.path? ‘; Path= ' + options.path: '; var domain = Options.domain? ‘; Domain= ' + options.domain: '; var secure = options.secure? ‘; Secure ': '; Document.cookie = [name, ' = ', encodeURIComponent (value), expires, path, domain, Secure].join ("); } else {//only name given, get cookie var cookievalue = null; if (document.cookie && document.cookie! = ") { var cookies = Document.cookie.split (';'); for (var i = 0; i < cookies.length; i++) { var cookie = Jquery.trim (Cookies[i]); Does this cookie, string begin with the name we want? if (cookie.substring (0, name.length + 1) = = (name + ' = ')) { Cookievalue = decodeURIComponent (cookie.substring (name.length + 1)); Break } } } return cookievalue; } } });

jquery action Cookie Records user query information

Http://www.php100.com/wy/js-ajax/40554.htm

JQuery cookie usage (Get cookie value, delete cookie)