jquery cookie consent plugin

In this article, we learn how to create a jquery cookie consent plugin with various examples. A simple lightweight jQuery cookie consent plugin is used for requesting consent for cookie usage.

Example 1:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of jQuery cookie consent plugin </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<style>
body {
  height: 300vh;
  background: linear-gradient(45deg,  violet , dodgerblue, hotpink);
} 
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: #FFFFFF;
  letter-spacing: 2px;
  text-align: center;
}
.popup-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  rigth: 0;
  bottom: 0;
  background-color: rgba(0,0,0,.5);
  width: 100%;
  height: 100%;
  text-align: center;
  padding: 4rem;
  align-items: center;
  justify-content: center;
  .popup {
    display: inline-block;
    width: 400px;
    min-height: 200px;
    background-color: white;
    border-radius: 5px;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
  }
}
p {
  flex: 0 1 100%;
  padding: 0 1rem;
  margin: 0;
  margin-top: 1rem;
  font-family: sans-serif;
}
a.close {
  margin-top: 0;
  display: inline-block;
  color: white;
  background-color: #673862;
  border-radius: 5px;
  padding: .25rem 1rem;
  text-decoration: none;
  text-transform: uppercase;
  font-family: sans-serif;
  margin-right: 1rem;
  &:last-of-type {
    margin-right: 0;
  }
}
a.submit {
  margin-top: 0;
  display: inline-block;
  color: white;
  background-color: #673862;
  border-radius: 5px;
  padding: .25rem 1rem;
  text-decoration: none;
  text-transform: uppercase;
  font-family: sans-serif;
  margin-right: 1rem;
  &:last-of-type {
    margin-right: 0;
  }
}
</style>
<body>
<div class="popup-overlay">
  <div class="popup">
    <p>If you select "close" a cookie will be created for one minute. If "submit" is selected a cookie will be set for 5 minutes. This can be used to remind users that dont sign up to do it,.</p>
    <a href="javascript:;" class="close">Close</a>
    <a href="javascript:;" class="submit">Submit</a>
  </div>
</div>
<script>
jQuery(document).ready(function($) {
    if( getCookie('popupCookie') != 'submited'){ 
    if(getCookie('popupCookie') != 'closed' ){
      $('.popup-overlay').css("display", "flex").hide().fadeIn();
    }
  }
  $('a.close').click(function(){
    $('.popup-overlay').fadeOut();
    setCookie( 'popupCookie', 'closed', .00069444444 );
  });
  $('a.submit').click(function(){
    $('.popup-overlay').fadeOut();
    setCookie( 'popupCookie', 'submited', .0034722222 );
  });
  function getCookie(cname) {
    var name = cname + "=";
    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);
      }
      if (c.indexOf(name) == 0) {
        return c.substring(name.length, c.length);
      }
    }
    return "";
  }
  function setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));
    var expires = "expires=" + d.toUTCString();
    document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
  }
});
</script>
</body>
</html>

Explanation:

In the above example, we created a jquery cookie consent plugin.

Output:

Following is the output of this example.

Example 2:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of jQuery cookie consent plugin </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<style>
:root {
	--background: #007af7;
	--white-text: #fff;
	--hover-text: #222;
	--button-background: #fff;
	--button-background-hover: #000;
	--button-text: #007af7;	
}
html {
	padding: 0;
	margin: 0;
	font-family: Poppins;
	font-size: 100%;
	background-size: cover;
	background-repeat: no-repeat;
}
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: #FFFFFF;
  letter-spacing: 2px;
  text-align: center;
}
body {
  height:300vh;
  background: linear-gradient(45deg,  violet , dodgerblue, hotpink);
}
body {
	padding: 0;
	margin: 0;
	font-family: Poppins;
	font-size: 100%;
	background: url(https://source.unsplash.com/random);
	background-size: cover;
	background-repeat: no-repeat;
}
.cookie-container {
	display: flex;
	align-content: center;
	align-items: center;
	padding: 1rem 2rem;
	background: var(--background);
	color: var(--white-text);
	position: fixed;
	bottom:0;
	font-size: 1rem;
	gap: 2rem;
	opacity: 1;
	visibility: visible;
	flex-wrap: wrap;
}
.cookie-container.hide {
	opacity: 0;
	visibility: hidden;
}
.cookie-container a {
	color: var(--white-color);
}
.cookie-container a:hover {
	color: var(--hover-text);
}
.cookie-container .cookie-text {
	flex: 8 768px;
}
.cookie-container .agree {
	flex: 1 150px;
	text-align: center;
}
.agree button {
	background: var(--button-background);
	color: var(--button-text);
	border: none;
	padding: 0.4rem 1.2rem;
	cursor: pointer;
	border-radius: 20px;
	font-size: 1rem;
}
.agree button:hover {
	background: var(--button-background-hover);
		color: var(--white-text);
}
</style>
<body>
<h1> Example </h1>
<h2> Jquery Cookie Consent Plugin </h2>
<div class="cookie-container hide">
	<p class="cookie-text">
		We use cookies and similar technologies that are necessary to operate the website. Additional cookies are used to perform analysis of website usage. By continuing to use our website, consent to our use of cookies. For more information, please read our <a href="#"> Privacy Policy.</a>
	</p>
	<div class="agree">
	<button> Ok </button>
		</div>
</div>
<script>
const cookieContainer = document.querySelector(".cookie-container");
const agreeBtn = document.querySelector(".agree button");
setTimeout(() => {
  cookieContainer.classList.remove("hide");
}, 1000);
agreeBtn.addEventListener("click", () => {
  cookieContainer.classList.add("hide");
});
</script>
</body>
</html>

Explanation:

In the above example, we created a jquery cookie consent plugin.

Output:

Following is the output of this example.

Example 3:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of jQuery cookie consent plugin </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<script src = "https://code.jquery.com/jquery-3.3.1.min.js"> </script>
<style>
html {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%);    
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
body {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%); 
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: #FFFFFF;
  letter-spacing: 2px;
  text-align: center;
}
.cookie-bar { position: fixed; bottom: 0px; padding: 10px 15px; width: 100%; display: none; z-index: 15; background-color: black; font-family: "Poppins", sans-serif; }
 .cookie-para { color: white; font-size: 12px; font-weight: normal; display: inline-block;
 padding-bottom: 5px; }
 .cookie-space { padding-bottom: 45px; }
.cookie-btn { font-size:14px; color: #ffffff; background: red; padding: 2px 15px; border-radius: 4px; 
  display: inline-block; margin-left: 1%;  }
.cookie-btn.secondary { color: #ffffff; background: #3575ff; }    
  @media (max-width: 767px) {
  .cookie-bar { padding: 10px 15px 40px 15px; }
</style>
<body>
<h1> Example </h1>
<h2> Jquery Cookie Consent Plugin </h2>
<section class="cookie-bar">
	<div class="cookie-notice container">
		<p class="cookie-para">We use cookies to enhance your user experience. By continuing using our site, you agree to our use of cookies.</p>
		<a href="javascript:;" class="cookie-btn"> Ok </a>
        <a href="#" class="cookie-btn secondary">Read More</a>
	</div>
</section>
<script>
$(document).ready(function(){
     if(readCookie("cookie_accepted") == "1"){
        $(".cookie-bar").hide();
    }
    else {
        $(".cookie-bar").show();
            $('body').addClass('cookie-space');
            $('.cookie-btn').click(function(){
                $('body').removeClass('cookie-space');
            $('.cookie-bar').fadeOut();
            createCookie("cookie_accepted", 1, 365);
        });     
    } 
    });
 function getParameterByName(name, url) {
        if (!url) {
            url = window.location.href;
        }
        name = name.replace(/[\[\]]/g, "\\$&");
        var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
            results = regex.exec(url);
        if (!results) return null;
        if (!results[2]) return '';
        return decodeURIComponent(results[2].replace(/\+/g, " "));
    }
    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.toUTCString();
        }
        document.cookie = name + "=" + value + expires + "; path=/";
    }
    function readCookie(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;
    }
    function eraseCookie(name) {
        createCookie(name, "", -1);
    }

    $(document).ready(function() {
        var advMedium = getParameterByName('advm');
        if (advMedium != null) {
            $('input[name=advm]').val(advMedium);
            createCookie('advm', advMedium, 1);
        } else {
            advMedium = readCookie('advm');
            $('input[name=advm]').val(advMedium);
        }
        var nodeCount = document.getElementsByName('ft').length;
        for (count = 0; count < nodeCount; count++) {
         document.getElementsByName('ft')[count].value = window.location.href;
        }
    });
</script>
</body>
</html>

Explanation:

In the above example, we created a jquery cookie consent plugin.

Output:

Following is the output of this example.

Example 4:

<! DOCTYPE html>  
<html>  
    <head>  
        <meta http-equiv = "Content-Type"  
            content = "text/html; charset=UTF-8" />  
        <title> Example of jQuery cookie consent plugin </title>  
        <meta name = "description"/>  
        <meta content = "width=800, initial-scale=1"  
        name = "viewport" />  
<script src =  
"https://code.jquery.com/jquery-3.5.1.min.js">  
        </script>               
        <script src =  
"https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"> </script>          
<script src = "https://code.jquery.com/jquery-3.3.1.min.js"> </script>
<style>
html {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%);    
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
body {
    position: relative;
    padding: 0;
    margin: 0;
    overflow: hidden;
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%, #333 ), color-stop(100%,black));
    background: -webkit-radial-gradient(center, ellipse cover, #333 0%, black 100%); 
    height: 100%;
    width: 100%;
    text-align: center;
    font-family: sans-serif;
}
h1 {
  position: relative;
  color: #FFF;
  font-weight: 100;
  font-size: 40px;
  padding: 0;
  margin: 0;
  text-align: center;
  line-height: 1;
  text-shadow: 0 0 10px #ff006c, 0 0 20px #ff006c, 0 0 30px #ff006c, 0 0 40px #ff417d, 0 0 70px #ff417d, 0 0 80px #ff417d, 0 0 100px #ff417d, 0 0 150px #ff417d;
}
h2 {
  font-weight: 200;
  font-size: 20px;
  padding: 0;
  margin: 0;
  line-height: 1;
  color: #FFFFFF;
  letter-spacing: 2px;
  text-align: center;
}
div.cookies {
  position: fixed; 
  bottom: 0;
  left: 0;
  z-index: 999;
  width: 100%;
  padding: 10px 0;
  color: #fff;
  font-size: 12px;
  line-height: 16px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  background: rgba(0,74,151,0.9);
}
div.cookies .container {
  position: relative;
}
@media only screen and (min-width: 1025px) {
  div.cookies .container {
    height: 40px;
  }
}
div.cookies .container div {
  padding-left: 60px;
  padding-right:10px;
}
div.cookies a {
  color: #fff;
  text-decoration: underline;
  border: none;
}
div.cookies a.close-cookie-warning {
  position: absolute;
  left: 15px;
  top: 0;
  display: block;
  background-color: rgb(0,74,151);
  color: #fff;
  padding: 9px 5px;
  cursor: pointer;
  font-size: 4rem;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}
div.cookies a.close-cookie-warning:hover {
  background-color: #fff;
  color:rgb(47,153,205);
  border-bottom: none;
}
@media only screen and (max-width: 767px) {
.mobile-hidden {
  display: none;
  }
}
</style>
<body>

<h1> Example </h1>
<h2> Jquery Cookie constent Plugin </h2>
<div class="cookies" style="display:none;">
  <div class="container">
    <div class = "col-sm-12"> We use cookies to help us give you the best experience on our website. <span class = "mobile-hidden"> If you continue without changing your settings, we'll assume that you are happy to receive all cookies on our website. However, if you would like to, you can change your cookie settings at any time. </span> <a class = "close-cookie-warning"> <span> ? </span> </a> </div>
  </div>
</div>
<script>
(function (factory) {
	if (typeof define === 'function' && define.amd) {
		define(['jquery'], factory);
	} else if (typeof exports === 'object') {
		factory(require('jquery'));
	} else {
		factory(jQuery);
	}
}(function ($) {
	var pluses = /\+/g;
	function encode(s) {
		return config.raw ? s : encodeURIComponent(s);
	}
	function decode(s) {
		return config.raw ? s : decodeURIComponent(s);
	}
	function stringifyCookieValue(value) {
		return encode(config.json ? JSON.stringify(value) : String(value));
	}
	function parseCookieValue(s) {
		if (s.indexOf('"') === 0) {
			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
		}
		try {
			s = decodeURIComponent(s.replace(pluses, ' '));
			return config.json ? JSON.parse(s) : s;
		} catch(e) {}
	}
	function read(s, converter) {
		var value = config.raw ? s : parseCookieValue(s);
		return $.isFunction(converter) ? converter(value) : value;
	}
	var config = $.cookie = function (key, value, options) {
		if (value !== undefined && !$.isFunction(value)) {
			options = $.extend({}, config.defaults, options);
			if (typeof options.expires === 'number') {
				var days = options.expires, t = options.expires = new Date();
				t.setTime(+t + days * 864e+5);
			}
			return (document.cookie = [
				encode(key), '=', stringifyCookieValue(value),
				options.expires ? '; expires=' + options.expires.toUTCString() : '',
				options.path    ? '; path=' + options.path : '',
				options.domain  ? '; domain=' + options.domain : '',
				options.secure  ? '; secure' : ''
			].join(''));
		}
		var result = key ? undefined : {};
		var cookies = document.cookie ? document.cookie.split('; ') : [];
		for (var i = 0, l = cookies.length; i < l; i++) {
			var parts = cookies[i].split('=');
			var name = decode(parts.shift());
			var cookie = parts.join('=');
			if (key && key === name) {
				result = read(cookie, value);
				break;
			}
			if (!key && (cookie = read(cookie)) !== undefined) {
				result[name] = cookie;
			}
		}
		return result;
	};
	config.defaults = {};
	$.removeCookie = function (key, options) {
		if ($.cookie(key) === undefined) {
			return false;
		}
		$.cookie(key, '', $.extend({}, options, { expires: -1 }));
		return !$.cookie(key);
	};
}));
$(".close-cookie-warning").on("click", function() {
  $.cookie('HideCookieMessage', 'true', { expires: 120, path: '/'});
  $('div.cookies').hide();
});
(function ($) {
  if ($.cookie('HideCookieMessage')) { $('.cookies').hide(); } else {
    $('.cookies').show(); }
})(jQuery);
</script>
</body>
</html>

Explanation:

In the above example, we created a jquery cookie consent plugin.

Output:

Following is the output of this example.

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