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JavaScript cookie with multiple name

Cookie with multiple Name-Value pairs in JavaScript

The cookies with multiple name-value pairs in JavaScript can be achieved by following the approaches mentioned ahead in this JavaScript tutorial. Only a single name value-pair can be contained by a cookie. However, in order to store more than one value-pair, the following approach can be used:

  • The custom object in a JSON string can be serialized, then parsed and then stored in a cookie.
  • For each name-value pair, a separate cookie can be used.

Let's have a look at the examples to store Name-Value pair in a cookie

1. Here is an example to check whether a cookie contains more than one name-value pair.

<!DOCTYPE html>  
<html>  
<head>  
</head>  
<body>  
    Name: <input type="text" id="name"><br>  
    Email: <input type="email" id="email"><br>  
    Course: <input type="text" id="course"><br>  
<input type="button" value="Set Cookie" onclick="setCookie()">  
<input type="button" value="Get Cookie" onclick="getCookie()">  
<script>  
    function setCookie()  
    {  
//Declaring 3 key-value pairs  
        var info="Name="+ document.getElementById("name").value+";Email="+document.getElementById("email").value+";Course="+document.getElementById("course").value;  
//Providing all 3 key-value pairs to a single cookie  
        document.cookie=info;  
    }  
  
    function getCookie()  
    {  
        if(document.cookie.length!=0)  
        {  
       //Invoking key-value pair stored in a cookie  
        alert(document.cookie);  
        }  
        else  
        {  
        alert("Cookie not available")  
        }  
    }  
</script>  
</body>  
</html>  

2. Here is an example to store different name-value pairs in a cookie using JSON

<!DOCTYPE html>  
<html>  
<head>  
</head>  
<body>  
    Name: <input type="text" id="name"><br>  
    Email: <input type="email" id="email"><br>  
    Course: <input type="text" id="course"><br>  
<input type="button" value="Set Cookie" onclick="setCookie()">  
<input type="button" value="Get Cookie" onclick="getCookie()">  
  
<script>  
    function setCookie()  
{  
    var obj = {};//Creating custom object  
    obj.name = document.getElementById("name").value;  
    obj.email = document.getElementById("email").value;  
    obj.course = document.getElementById("course").value;  
  
//Converting JavaScript object to JSON string      
var jsonString = JSON.stringify(obj);  
  
    document.cookie = jsonString;  
}  
         function getCookie()  
{  
    if( document.cookie.length!=0)  
    {  
//Parsing JSON string to JSON object  
    var obj = JSON.parse(document.cookie);  
      
        alert("Name="+obj.name+" "+"Email="+obj.email+" "+"Course="+obj.course);  
    }  
    else  
    {  
        alert("Cookie not available");  
    }  
}  
    </script>  
</body>  
</html>  

3. Here is an example to store each name-value pair in a different cookie.

<!DOCTYPE html>  
<html>  
<head>  
</head>  
<body>  
    Name: <input type="text" id="name"><br>  
    Email: <input type="email" id="email"><br>  
    Course: <input type="text" id="course"><br>  
<input type="button" value="Set Cookie" onclick="setCookie()">  
<input type="button" value="Get Cookie" onclick="getCookie()">  
  
<script>  
 function setCookie()  
{  
    document.cookie = "name=" + document.getElementById("name").value;  
    document.cookie = "email=" + document.getElementById("email").value;  
    document.cookie = "course=" + document.getElementById("course").value;  
}  
function getCookie()  
{  
    if (document.cookie.length != 0)  
    {  
        alert("Name="+document.getElementById("name").value+" Email="+document.getElementById("email").value+" Course="+document.getElementById("course").value);  
    }      
    else  
    {  
        alert("Cookie not available");  
    }  
}     
 </script>  
</body>  
</html>  

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