Reminder before leaving the page — kit_unload

When there are results from this session (for example, after calibration), the browser asks once before the tab is closed or reloaded. Turn it on and off in the server based on the result: shiny::observe(kit_unload_guard(!is.null(result()))).

Usage

kit_unload_guard(on = TRUE, session = shiny::getDefaultReactiveDomain())

Arguments

on: TRUE turns it on, FALSE turns it off.
session: Defaults to the current session.

Value

on, invisibly.

Examples

if (interactive()) kit_unload_guard(TRUE)