Summary of jquery cookie usage_jquery-JS Tutorial-php.cn

Summary of jquery cookie usage_jquery

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Release： 2016-05-16 17:14:34

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jQuery cookie is a good cookie plug-in. The general usage method is as follows
example $.cookie('name', 'value');
Set the value of the cookie and set the value of the name variable to value
example $.cookie('name', 'value', {expires: 7, path: '/', domain: 'jquery.com', secure: true});
Create a new cookie including the expiration path Domain name, etc.
example $.cookie('name', 'value');
Create a new cookie
example $.cookie('name', null);
Delete a cookie

var account= $.cookie('name');
Take a cookie(name) value and give it to myvar

The code is as follows

Copy codeThe code is as follows:

jQuery.cookie = function(name , value, options) {
 if (typeof value != 'undefined') { // name and value given, set cookie
 options = options || {};
 if (value === null ; number' || options.expires.toUTCString)) {
 var date;
 if (typeof options.expires == 'number') {
 date = new Date();
 date. setTime (date.getTime() (options.expires * 24 * 60 * 60 * 1000));
                                                                                           = '; expires=' date.toUTCString(); // use expires attribute, max-age is not 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]); =')) {
                               cookieValue =                                                                                                                                                         cookieValue =            🎜>       }
                      return cookieValue;                                                  
};


Then I looked at the cookie operation method in Discuz! 
 as follows, and found that there is missing a traversal; the processing of divided arrays 




Copy code


 The code is as follows:

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 : document.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' : '');
}