How to check page is reloading or refreshing using jquery or javascript?

Question

I have to do some kind of operation on the page refresh or reload. that is when I hit next page or Filter or refresh on the grid. I need to show some confirmation box over t

Answer 1

If it is refreshing, window.onunload will fire.

// From MDN
window.onunload = unloadPage;
function unloadPage()
{
    alert("unload event detected!");
}

https://developer.mozilla.org/en/DOM/window.onunload

If you just want a confirmation box to allow them to stay, use this:

window.onbeforeunload = function() {
    return "Are you sure you want to navigate away?";
}