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How do I set/unset cookie with jQuery?

Posted by: admin November 2, 2017 Leave a comment

Questions:

How do I set and unset a cookie using jQuery, for example create a cookie named test and set the value to 1?

Answers:

See the plugin:

https://github.com/carhartl/jquery-cookie

You can then do:

$.cookie("test", 1);

To delete:

$.removeCookie("test");

Additionally, to set a timeout of a certain number of days (10 here) on the cookie:

$.cookie("test", 1, { expires : 10 });

If the expires option is omitted, then the cookie becomes a session cookie, and is deleted when the browser exits.

To cover all the options:

$.cookie("test", 1, {
   expires : 10,           //expires in 10 days

   path    : '/',          //The value of the path attribute of the cookie 
                           //(default: path of page that created the cookie).

   domain  : 'jquery.com',  //The value of the domain attribute of the cookie
                           //(default: domain of page that created the cookie).

   secure  : true          //If set to true the secure attribute of the cookie
                           //will be set and the cookie transmission will
                           //require a secure protocol (defaults to false).
});

To read back the value of the cookie:

var cookieValue = $.cookie("test");

You may wish to specify the path parameter if the cookie was created on a different path to the current one:

var cookieValue = $.cookie("test", { path: '/foo' });

UPDATE (April 2015):

As stated in the comments below, the team that worked on the original plugin has removed jquery dependency in a new project (https://github.com/js-cookie/js-cookie) which has the same functionality and general syntax as the jquery version. Apparently the original plugin isn’t going anywhere though.

Questions:
Answers:

No need to use jQuery particularly to manipulate cookies.

From QuirksMode (including escaping characters)

function createCookie(name, value, days) {
    var expires;

    if (days) {
        var date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        expires = "; expires=" + date.toGMTString();
    } else {
        expires = "";
    }
    document.cookie = encodeURIComponent(name) + "=" + encodeURIComponent(value) + expires + "; path=/";
}

function readCookie(name) {
    var nameEQ = encodeURIComponent(name) + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) === ' ') c = c.substring(1, c.length);
        if (c.indexOf(nameEQ) === 0) return decodeURIComponent(c.substring(nameEQ.length, c.length));
    }
    return null;
}

function eraseCookie(name) {
    createCookie(name, "", -1);
}

Take a look at

Questions:
Answers:
<script type="text/javascript">
        function setCookie(key, value) {
            var expires = new Date();
            expires.setTime(expires.getTime() + (1 * 24 * 60 * 60 * 1000));
            document.cookie = key + '=' + value + ';expires=' + expires.toUTCString();
        }

        function getCookie(key) {
            var keyValue = document.cookie.match('(^|;) ?' + key + '=([^;]*)(;|$)');
            return keyValue ? keyValue[2] : null;
        }
</script>

You can set the cookies as like

setCookie('test','1');

You can get the cookies as like

getCookie('test');

Hope it will helps to someone 🙂

EDIT:

If you want to save path of cookie for homepage alone then do this like

function setCookie(key, value) {
                var expires = new Date();
                expires.setTime(expires.getTime() + (1 * 24 * 60 * 60 * 1000));
                document.cookie = key + '=' + value +';path=/'+ ';expires=' + expires.toUTCString();
            }

Thanks,
vicky

Questions:
Answers:

You can use a plugin available here..

https://plugins.jquery.com/cookie/

and then to write a cookie do
$.cookie("test", 1);

to access the set cookie do
$.cookie("test");

Questions:
Answers:

make sure not to do something like this:

var a = $.cookie("cart").split(",");

Then, if the cookie doesn’t exist, the debugger will return some unhelpful message like “.cookie not a function”

Always declare first, then do the split after checking for null. like this.

var a = $.cookie("cart");
        if (a != null) {
            var aa = a.split(",");

Questions:
Answers:

A simple example of set cookie in your browser:

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>jquery.cookie Test Suite</title>

        <script src="jquery-1.9.0.min.js"></script>
        <script src="jquery.cookie.js"></script>
        <script src="JSON-js-master/json.js"></script>
        <script src="JSON-js-master/json_parse.js"></script>
        <script>
            $(function() {

               if ($.cookie('cookieStore')) {
                    var data=JSON.parse($.cookie("cookieStore"));
                    $('#name').text(data[0]);
                    $('#address').text(data[1]);
              }

              $('#submit').on('click', function(){

                    var storeData = new Array();
                    storeData[0] = $('#inputName').val();
                    storeData[1] = $('#inputAddress').val();

                    $.cookie("cookieStore", JSON.stringify(storeData));
                    var data=JSON.parse($.cookie("cookieStore"));
                    $('#name').text(data[0]);
                    $('#address').text(data[1]);
              });
            });

       </script>
    </head>
    <body>
            <label for="inputName">Name</label>
            <br /> 
            <input type="text" id="inputName">
            <br />      
            <br /> 
            <label for="inputAddress">Address</label>
            <br /> 
            <input type="text" id="inputAddress">
            <br />      
            <br />   
            <input type="submit" id="submit" value="Submit" />
            <hr>    
            <p id="name"></p>
            <br />      
            <p id="address"></p>
            <br />
            <hr>  
     </body>
</html>

Simple just copy/paste and use this code for set your cookie.

Questions:
Answers:

You can use the library on Mozilla website here

You’ll be able to set and get cookies like this

docCookies.setItem(name, value);
docCookies.getItem(name);

Questions:
Answers:

Here is my global module I use –

var Cookie = {   

   Create: function (name, value, days) {

       var expires = "";

        if (days) {
           var date = new Date();
           date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
           expires = "; expires=" + date.toGMTString();
       }

       document.cookie = name + "=" + value + expires + "; path=/";
   },

   Read: function (name) {

        var nameEQ = name + "=";
        var ca = document.cookie.split(";");

        for (var i = 0; i < ca.length; i++) {
            var c = ca[i];
            while (c.charAt(0) == " ") c = c.substring(1, c.length);
            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
        }

        return null;
    },

    Erase: function (name) {

        Cookie.create(name, "", -1);
    }

};

Questions:
Answers:

i think Fresher gave us nice way, but there is a mistake

    <script type="text/javascript">
        function setCookie(key, value) {
            var expires = new Date();
            expires.setTime(expires.getTime() + (value * 24 * 60 * 60 * 1000));
            document.cookie = key + '=' + value + ';expires=' + expires.toUTCString();
        }

        function getCookie(key) {
            var keyValue = document.cookie.match('(^|;) ?' + key + '=([^;]*)(;|$)');
            return keyValue ? keyValue[2] : null;
        }
   </script>

You should add “value” near getTime(), otherwise cookie will expire immediately 🙂