jquery Write read Cookie plugin detailed

Source: Internet
Author: User
Tags set cookie

Looking for a plugin on the jquery operation Cookie, the approximate usage is as follows
Example $.cookie (' The_cookie ', ' the_value ');
Set the value of a cookie
Example $.cookie (' The_cookie ', ' The_value ', {expires:7, path: '/', Domain: ' jquery.com ', secure:true});
Create a new cookie including the expiration path domain name, etc.
Example $.cookie (' The_cookie ', ' the_value ');
New Cookie
Example $.cookie (' The_cookie ', null);
Delete a cookie


The code is as follows

The code is as follows Copy Code

Jquery.cookie = 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;

}

};


Then I looked at the method of how to discuz! cookies in the next
as follows, found less traversal used; the processing of partitioned arrays

  code is as follows copy code

function GetCookie (name) {

var cookie_start = document.cookie.indexOf (name);

var cookie_end = document.cookie.indexOf (";", Cookie_start);

Return Cookie_start = = 1? ': unescape (document.cookie.substring Cookie_start + name.length + 1, cookie_end > Cookie_start? cookie_end:docum ent.cookie.length));

}

 

Function Setcookie (cookiename, cookievalue, seconds, path, domain, secure) {

var expires = new Date ();

Expires.settime (Expires.gettime () + seconds);

Document.cookie = Escape (cookiename) + ' = ' + Escape (cookievalue)

+ (expires? '; Expires= ' + expires.togmtstring (): ')

+ (path? '; Path= ' + path: '/')

+ (domain? '; Domain= ' + domain: ')

+ (secure? '; Secure ': ');

}

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