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  • JQuery操作cookies

     1 jQuery.cookie = function(name, value, options) {   
     2     if (typeof value != 'undefined') { // name and value given, set cookie  
     3         options = options || {};  
     4         if (value === null) {  
     5             value = '';  
     6             options.expires = -1;  
     7         }  
     8         var expires = '';  
     9         if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {  
    10             var date;  
    11             if (typeof options.expires == 'number') {  
    12                 date = new Date();  
    13                 date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));  
    14             } else {  
    15                 date = options.expires;  
    16             }  
    17             expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE  
    18         }  
    19         // CAUTION: Needed to parenthesize options.path and options.domain  
    20         // in the following expressions, otherwise they evaluate to undefined  
    21         // in the packed version for some reason...  
    22         var path = options.path ? '; path=' + (options.path) : '';  
    23         var domain = options.domain ? '; domain=' + (options.domain) : '';  
    24         var secure = options.secure ? '; secure' : '';    
    25         document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');  
    26     } else { // only name given, get cookie  
    27         var cookieValue = null;  
    28         if (document.cookie && document.cookie != '') {  
    29             var cookies = document.cookie.split(';');  
    30             for (var i = 0; i < cookies.length; i++) {  
    31                 var cookie = jQuery.trim(cookies[i]);  
    32                 // Does this cookie string begin with the name we want?  
    33                 if (cookie.substring(0, name.length + 1) == (name + '=')) {  
    34                     cookieValue = decodeURIComponent(cookie.substring(name.length + 1));  
    35                     break;  
    36                 }  
    37             }  
    38         }  
    39         return cookieValue;  
    40     }  
    41 };  
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  • 原文地址:https://www.cnblogs.com/jasonoiu/p/JQuery_Operating_Cookies.html
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