“JavaScript Show Popup on Page Refrexer des modifications non sauvées” Réponses codées

JavaScript Show Popup on Page Refrexer des modifications non sauvées

var onReloadCheck = function () {
        $(window).on('beforeunload', function () {
            var modal = $('#myModal').hasClass('show');
            if (modal) {
                return "If you leave before saving, your changes will be lost.";
            }
        });
    }