
javascript - How to show alert message when closing a window…
Nov 5, 2012 · I want to show an alert message "Please logout before closing the window" with an logout button, when an user tries to close the window and after clicking on logout button the …
How to detect browser or tab closing in JavaScript - Atta-Ur …
Jul 24, 2022 · In JavaScript, you can use the beforeunload event to detect a tab or window closing in a browser. It is used to alert the user about unsaved changes on the webpage or to prevent …
Window: alert() method - Web APIs | MDN - MDN Web Docs
Oct 4, 2023 · window.alert() instructs the browser to display a dialog with an optional message, and to wait until the user dismisses the dialog. Under some conditions — for example, when …
Window alert() Method - W3Schools
The alert() method displays an alert box with a message and an OK button. The alert() method is used when you want information to come through to the user.
Alert when browser window closed accidentally - Stack Overflow
Aug 7, 2009 · setConfirmUnload(true) to enable the confirmation or false if you want to allow them to close the screen without a warning (if you have a close button for instance).
How to Detect Browser or Tab Closing Event in JavaScript
Mar 11, 2025 · Detecting when a user closes a browser tab or window can be crucial for web applications that need to manage user sessions or save data. In this tutorial, we will explore …
JavaScript: Asking for Confirmation Before Closing a Tab/Window
Feb 14, 2024 · In such cases, prompting the user for confirmation before the tab closes can prevent frustration and data loss. In this tutorial, we will explore how to implement such a …
How to Detect Browser Close Event in JavaScript - Read Radiant
Aug 22, 2024 · To detect when a user is about to close the browser or navigate away, use the beforeunload event: Detecting a browser close event is useful for scenarios such as saving …
Handling the JavaScript Browser Tab Close Event: A …
Mar 17, 2025 · When a user closes a browser tab, it triggers the beforeunload event in JavaScript. This event is fired just before the page is unloaded, allowing you to execute custom code. You …
Javascript Detect browser close event alert message
Dec 23, 2010 · This script will help you to detect browser or tab close event and alert some messages. Even this script will be useful to call some Ajax functions which terminate …