web api event

NavigationHistoryEntry: dispose event

The dispose event of the NavigationHistoryEntry interface is fired when the entry is no longer part of the history entry list.

Disposal occurs when:

Forward history entries are cleared. See the example at Notifications on entry disposal for more information.
The user clears their browser history using settings or provided UI controls.
The history limit is exceeded. This is not specified anywhere, but browsers tend to have a history limit of 50 pages.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("dispose", (event) => { })

ondispose = (event) => { }

A generic Event.

navigation.addEventListener("currententrychange", () => {
  navigation.currentEntry.addEventListener("dispose", disposeHandler);
});

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibilityCompatibility data is available on the canonical MDN page.