[jQuery]jquery读cookie源代码
[jQuery]jquery读cookie源代码
[jQuery]jquery读cookie
- /*!
- * jQuery Cookie Plugin
- * https://github.com/carhartl/jquery-cookie
- *
- * Copyright 2011, Klaus Hartl
- * Dual licensed under the MIT or GPL Version 2 licenses.
- * http://www.opensource.org/licenses/mit-license.php
- * http://www.opensource.org/licenses/GPL-2.0
- */
- /*①、Create expiring cookie, 7 days from then:*/
- //$.cookie('the_cookie', 'the_value', { expires: 7 });
- /*②、Read cookie:*/
- //$.cookie('the_cookie'); // => 'the_value' or Null
- /*③、Delete cookie by passing null as value:*/
- //$.cookie('the_cookie', null);
- (function($) {
- $.cookie = function(key, value, options) {
- // key and at least value given, set cookie...
- if (arguments.length > 1 && (!/Object/.test(Object.prototype.toString.call(value)) || value === null || value === undefined)) {
- options = $.extend({}, options);
- if (value === null || value === undefined) {
- options.expires = -1;
- }
- if (typeof options.expires === 'number') {
- var days = options.expires, t = options.expires = new Date();
- t.setDate(t.getDate() + days);
- }
- value = String(value);
- return (document.cookie = [
- encodeURIComponent(key), '=', options.raw ? value : encodeURIComponent(value),
- options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
- options.path ? '; path=' + options.path : '',
- options.domain ? '; domain=' + options.domain : '',
- options.secure ? '; secure' : ''
- ].join(''));
- }
- // key and possibly options given, get cookie...
- options = value || {};
- var decode = options.raw ? function(s) { return s; } : decodeURIComponent;
- var pairs = document.cookie.split('; ');
- for (var i = 0, pair; pair = pairs[i] && pairs[i].split('='); i++) {
- if (decode(pair[0]) === key) return decode(pair[1] || ''); // IE saves cookies with empty string as "c; ", e.g. without "=" as opposed to EOMB, thus pair[1] may be undefined
- }
- return null;
- };
- })(jQuery);
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