Checking if the browser is online

There is a easy way to check if the browser as internet access or not. In the wireless and mobile world a check if the loaded page has internet access can be very good, a very easy check can save you alot of problem.

The only thing you need to do is


  1. To be clear, does this mean that the browser is in offline mode or does it mean that has a valid internet connection?

    Could be useful thanks 🙂

    • Fredrik Norling

      I have checked it by loading up a page and removing the wireless connection. And yes it will detect this so it’s not only offline mode in the webbrowser that is detected.

  2. Tense version:

    alert(navigator.onLine ? “Online” : “Offline);

    you don’t actually need a == true since it is boolean already;

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