Check Internet Connection Using javascript
How to Check Network Status using JavaScript | Toast Notification to Detect Internet Connection or Network Status in JavaScript
In this video, I have shown you how you can create a toast notification to check the Internet connection status or network status using HTML CSS & JavaScript. The concepts/codes behind creating this program are so simple. At first, using JavaScript Ajax I send a GET request to a particular passed URL and check, that URL is sending any data as a response or not and the response status of that request is equal to 200 and less than 300 or not. If the URL is sending data as a response and the response status is also equal to 200 then the user is connected to the Internet so he/she is getting data as a response but if it isn't means passed URL is not responding any data then the user is disconnected from the Internet.
You may have question about why I didn't use navigator onLine property and online/offline events to detect the network status right? As we know, navigator.onLine will return true if the browser is connected to the Internet else it will return false. But you can't assume that a true value necessarily means that the browser can access the Internet. Suppose, you're connected to the WiFi which has no Internet access then navigator.onLine will return true value but you can't view any online pages and I don't want it so I used above method. You can detect network status by using many different methods.
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