Esta es una biblioteca Javascript para acceder y manipular cookies HTTP del navegador web. Se puede obtener un o una lista de cookies, cookies, borrar las cookies.
cookie.js
/*jslint browser: true */ /*global jQuery: true */ /** * jQuery Cookie plugin * * Copyright (c) 2010 Klaus Hartl (stilbuero.de) * Dual licensed under the MIT and GPL licenses: * http://www.opensource.org/licenses/mit-license.php * http://www.gnu.org/licenses/gpl.html * */ // TODO JsDoc /** * Create a cookie with the given key and value and other optional parameters. * * @example $.cookie('the_cookie', 'the_value'); * @desc Set the value of a cookie. * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true }); * @desc Create a cookie with all available options. * @example $.cookie('the_cookie', 'the_value'); * @desc Create a session cookie. * @example $.cookie('the_cookie', null); * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain * used when the cookie was set. * * @param String key The key of the cookie. * @param String value The value of the cookie. * @param Object options An object literal containing key/value pairs to provide optional cookie attributes. * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object. * If a negative value is specified (e.g. a date in the past), the cookie will be deleted. * If set to null or omitted, the cookie will be a session cookie and will not be retained * when the the browser exits. * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie). * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie). * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will * require a secure protocol (like HTTPS). * @type undefined * * @name $.cookie * @cat Plugins/Cookie * @author Klaus Hartl/klaus.hartl@stilbuero.de */ /** * Get the value of a cookie with the given key. * * @example $.cookie('the_cookie'); * @desc Get the value of a cookie. * * @param String key The key of the cookie. * @return The value of the cookie. * @type String * * @name $.cookie * @cat Plugins/Cookie * @author Klaus Hartl/klaus.hartl@stilbuero.de */
jQuery.cookie = function (key, value, options) {
// key and value given, set cookie...
if (arguments.length > 1 && (value === null || typeof value !== "object")) {
options = jQuery.extend({}, options);
if (value === null) {
options.expires = -1;
}
if (typeof options.expires === 'number') {
var days = options.expires, t = options.expires = new Date();
t.setDate(t.getDate() + days);
}
return (document.cookie = [
encodeURIComponent(key), '=',
options.raw ? String(value) : encodeURIComponent(String(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 result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};
funciones js
$(function() {
var COOKIE_NAME = 'test_cookie';
var ADDITIONAL_COOKIE_NAME = 'additional';
var options = { path: '/', expires: 10 };
// set cookie by number of days
$('a').eq(0).click(function() {
$.cookie(COOKIE_NAME, 'test', options);
return false;
});
// set cookie by date
$('a').eq(1).click(function() {
var date = new Date();
date.setTime(date.getTime() + (3 * 24 * 60 * 60 * 1000));
$.cookie(COOKIE_NAME, 'test', { path: '/', expires: date });
return false;
});
// get cookie
$('a').eq(2).click(function() {
alert($.cookie(COOKIE_NAME));
return false;
});
// delete cookie
$('a').eq(3).click(function() {
$.cookie(COOKIE_NAME, null, options);
return false;
});
// set a second cookie
$('a').eq(4).click(function() {
$.cookie(ADDITIONAL_COOKIE_NAME, 'äöüß;foo=bar', { expires: 10 });
return false;
});
// get second cookie
$('a').eq(5).click(function() {
alert($.cookie(ADDITIONAL_COOKIE_NAME));
return false;
});
// delete second cookie
$('a').eq(6).click(function() {
$.cookie(ADDITIONAL_COOKIE_NAME, null);
return false;
});
});
html
<p> <a href="#">Set cookie (by number of days == 10)</a><br>
<a href="#">Set cookie (by date == 3 days)</a><br>
<a href="#">Get cookie</a><br>
<a href="#">Delete cookie</a><br>
<a href="#">Set additional cookie</a><br>
<a href="#">Get additional cookie</a><br>
<a href="#">Delete additional cookie</a></p>
