Onbeforeunload method. Oct 14, 2022 · window.

Onbeforeunload method. Jul 12, 2025 · The onbeforeunload event occurs when you click a text link or picture link or any kind of link which will bring you to a new page. This event will display a confirmation dialog box to inform the user whether the user wants to stay on the page or leave the current page and move on to the next linked page. Jun 23, 2025 · Note that this only works when the function is attached via the onbeforeunload property, not the addEventListener() method. However, not all browsers implement this:. According to the specification, you need to call the preventDefault() method inside the beforeunload event handler to show the confirmation dialog. Oct 14, 2022 · window. This behavior is consistent across modern versions of Firefox, Safari, and Chrome. This event allows you to display a message in a confirmation dialog box to inform the user whether he/she wants to stay or leave the current page. The onbeforeunload event occurs when a document is about to be unloaded. Nov 25, 2000 · I'm stuck working out which one of these I should be using: beforeunload or onbeforeunload They both seem to be doing very similar things, but with different browser compatibility. onbeforeunload If a visitor initiated navigation away from the page or tries to close the window, the beforeunload handler asks for additional confirmation. Nov 23, 2024 · How to Override the OnBeforeUnload Dialog and Replace It with Your Own In modern web development, it’s quite common to need to alert users about unsaved changes before they navigate away from a page. hdsy mlhfgzq rcg kwihu awexff nzlve yaxc svmur ezhhhy kbwi