Navigation: entries() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The entries() method of the Navigation interface returns an array of NavigationHistoryEntry objects representing all existing history entries.

Syntax

js
entries()

Parameters

None.

Return value

An array of NavigationHistoryEntry objects.

Exceptions

None.

Examples

Return the number of entries in the history

js
let numOfEntries = navigation.entries().length - 1;

A smart back button

A page-supplied "back" button can take you back, even after reload, by inspecting the previous history entries:

js
backButtonEl.addEventListener("click", () => {
  if (
    navigation.entries()[navigation.currentEntry.index - 1]?.url ===
    "/product-listing"
  ) {
    navigation.back();
  } else {
    // If the user arrived here in some other way
    // e.g. by typing the URL directly:
    navigation.navigate("/product-listing", { history: "replace" });
  }
});

Specifications

Specification
HTML Standard
# dom-navigation-entries-dev

Browser compatibility

BCD tables only load in the browser

See also