How to Check Whether User Online/Offline in Javascript

How to Check Whether User Online/Offline in Javascript

This is a very small and basic tutorial about usage of navigator api to check if user is online or offline.

This is a very small and basic tutorial about usage of navigator api to check if user is online or offline.

Subscribe: https://www.youtube.com/c/FWAIT/featured

Source Code


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="style.css">
    <title>Document</title>
</head>
<body>

    <div id="container">
        <span></span>
    </div>

    <script src="script.js"></script>
</body>
</html>

const status = window.navigator.onLine;
if(status) online()
else offline()


window.addEventListener('online', online);
window.addEventListener('offline', offline);


function online(){
    document.getElementById('container').style.backgroundColor = 'green';
    document.querySelector('span').textContent = 'Online';
}

function offline(){
    document.getElementById('container').style.backgroundColor = 'red';
    document.querySelector('span').textContent = 'Offline';
}

#container {
    width: 100%;
    border: 1px solid black;
    text-align: center;
    color: #fff;
}

javascript

What is Geek Coin

What is GeekCash, Geek Token

Best Visual Studio Code Themes of 2021

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Hire Dedicated JavaScript Developers -Hire JavaScript Developers

Hire dedicated JavaScript Developers who are proficient in AngularJS, ReactJS, NodeJS, & VueJS frameworks. Get flexible hiring models as per your business requirements.

What is JavaScript - Stackfindover - Blog

What is PHP: - Who invented PHP, how it works, answers to all such questions about PHP, and much other information, you are going to

JavaScript Shopping Cart - Javascript Project for Beginners

JavaScript Shopping Cart - javascript shopping cart tutorial for beginnersBuy me a coffee 🍺 https://www.paypal.com/paypalme/ziddahSource Code: https://bit....

The essential JavaScript concepts that you should understand

The essential JavaScript concepts that you should understand - For successful developing and to pass a work interview

JavaScript compound assignment operators

We use assignment operator in JavaScript to store values in a variable. Read more...