Warn user before leaving web page with unsaved changes javascript is the todays tutorial. The onbeforeunload event handler is used to process beforeunload events. This event is fired when a window is about to unload its resources. This event would be used to check whether the user has left a form incomplete or unsaved data.
So i think it good to show warn like display warning before leaving the web page with unsaved changes using JavaScript. So i am here to share with you the following source code will help you make before leaving the web page with unsaved changes.
Example code:
window.addEventListener("beforeunload", function(e) {
var confirmationMessage = 'It looks like you have been editing something. ' + 'If you leave before saving, your changes will be lost.';
(e || window.event).returnValue = confirmationMessage;
});
Read also: How to Show and Hide Password When Click on Eye Icon Using jQuery
Hope it can help you.
#javascript