How to make an icon flash/blink, which is present in a web page

Question

I started working on advanced java few days before(too late to start on that, I know). I am stuck with a specific task of making an icon (which is present on the task bar) blink

Answer 1

You might find opacity works better because the image is still there, which means it is still clickable if necessary. Also you can add a clear interval to stop the flashing.

var mycounter = 0
interval = window.setInterval(function () {
if (img.style.opacity == '0.1') {
            img.style.opacity = '1';

            mycounter = mycounter + 1
            if (mycounter == 7) {
                clearInterval(interval);
            }
        } else {
            img.style.opacity = '0.1';
        }
    }, 500); //the 1000 here is milliseconds and determines how often the interval