jQuery Cookie - Reading, Writing and Deleting Cookies

jQuery Cookie is a simple, lightweight jQuery plugin for reading, writing and deleting cookies.

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Source: github.com

1. INCLUDE JS FILES

<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="/path/to/jquery.cookie.js"></script>

2. JAVASCRIPT

Create session cookie:

$.cookie('the_cookie', 'the_value');

Create expiring cookie, 7 days from then:

$.cookie('the_cookie', 'the_value', { expires: 7 });

Create expiring cookie, valid across entire site:

$.cookie('the_cookie', 'the_value', { expires: 7, path: '/' });

Read cookie:

$.cookie('the_cookie'); // => "the_value"
$.cookie('not_existing'); // => undefined

Read all available cookies:

$.cookie(); // => { "the_cookie": "the_value", "...remaining": "cookies" }

Delete cookie:

// Returns true when cookie was found, false when no cookie was found...
$.removeCookie('the_cookie');

// Same path as when the cookie was written...
$.removeCookie('the_cookie', { path: '/' });

Note: when deleting a cookie, you must pass the exact same path, domain and secure options that were used to set the cookie, unless you're relying on the default options that is.

3. OPTIONS

Cookie attributes can be set globally by setting properties of the $.cookie.defaults object or individually for each call to $.cookie() by passing a plain object to the options argument. Per-call options override the default options.

expires

expires: 365

Define lifetime of the cookie. Value can be a Number which will be interpreted as days from time of creation or aDate object. If omitted, the cookie becomes a session cookie.

path

path: '/'

Define the path where the cookie is valid. By default the path of the cookie is the path of the page where the cookie was created (standard browser behavior). If you want to make it available for instance across the entire domain use path: '/'. Default: path of page where the cookie was created.

domain

domain: 'example.com'

Define the domain where the cookie is valid. Default: domain of page where the cookie was created.

secure

secure: true

If true, the cookie transmission requires a secure protocol (https). Default: false.

4. CONFIGURATION

raw

By default the cookie value is encoded/decoded when writing/reading, usingencodeURIComponent/decodeURIComponent. Bypass this by setting raw to true:

$.cookie.raw = true;

json

Turn on automatic storage of JSON objects passed as the cookie value. Assumes JSON.stringify andJSON.parse:

$.cookie.json = true;