Gyan Sangrah

Check if user is connected to internet or not in JavaScript

Sometimes it happens that a user is using your website and suddenly internet got disconnected. But how do you notify the end user about this.

Navigator.onLine

JavaScript has come up with a property ‘onLine’. ’onLine’ returns true if the user is connected to internet and false if disconnected.

Example

<!DOCTYPE html>

<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
    <script>
        alert(navigator.onLine);
    </script>
</head>
<body>
    
</body>
</html>

Above code prompts true if user is connected to internet and false if disconnected.

Posted By -	Karan Gupta

Posted On -	Saturday, January 28, 2017

Query/Feedback

Your Email Id

Subject

Query/Feedback	Characters remaining 250