jquery插件如何使用 jQuery操作Cookie插件使用介绍

jQuery.cookie = function(name, value, options) {
if (typeof value != undefined) { // name and value given, set cookie
options = options || {};
if (value === null) {
value = ;
options = $.extend({}, options); // clone object since its unexpected behavior if the expired property were changed
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 is not supported by IE
}
// NOTE Needed to parenthesize options.path and options.domain
// in the following expressions, otherwise they evaluate to undefined
// in the packed version for some reason...
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;
}
};