Question

I got to know how we can get a popup when the user tries to close the browser. Now my question how can we execute some piece of code if the user says ‘Stay on page’? is there any click handler for that button?

Answer 1

Try using the onbeforeunload event.

(function () {

    var oldMousemove = document.body.onmousemove,
        onCancel = function () {
            // Do something if the user stays.
            document.body.onmousemove = oldMousemove;
        };

    window.onbeforeunload = function() {
        document.body.onmousemove = onCancel;
        return 'Do you really want to leave?';
    };

})();

Note: Most browsers won’t respect the custom prompt statement and will favor their own instead.