JavaScript Deleting Cookies

Javascript facilitates multiple ways of deleting cookies. These are as follows:

1. Delete cookie by using expire attribute

document.cookie = 'name=Mahesh; expires=Sun, 19 May 2019 18:04:55 UTC'

2. Delete cookie by using max-age attribute

document.cookie = 'name=Vishal; max-age=7200'

3. Delete cookie explicitly by using a web browser
Example:

<!DOCTYPE html>  
	<html>  
	<head>  
	</head>  
	<body>  
	<input type="button" value="set" onclick="setCookie()">  
	<input type="button" value="get" onclick="getCookie()">  
    	<script>  
    	function setCookie()  
    	{  
        	document.cookie="username = COOKIE;expires=Sun, 28 Nov 2018 13:15:00 UTC";  
    	}  
    	function getCookie()  
    	{  
        	if(document.cookie.length!=0)  
        	{  
        	alert(document.cookie);  
        	}  
        	else  
        	{  
        	alert("No Cookie here");  
        	}  
    	}  
    	</script>  
	</body>  
	</html>
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