Goes to the previous page in session history, the same action as when the user clicks the browser's Back button.
Goes to the next page in session history, the same action as when the user clicks the browser's Forward button; this is equivalent to history.
Loads a page from the session history, identified by its relative location to the current page, for example -1 for the previous page or 1 for the next page.
Pushes the given data onto the session history stack with the specified title and, if provided, URL.
Updates the most recent entry on the history stack to have the specified data, title, and, if provided, URL.
Returns an any value representing the state at the top of the history stack.