Creates a robservable-like object that can be used to customize and control a robservable that has already been rendered. For use in Shiny apps and Shiny docs only.
robservableProxy(
id,
session = shiny::getDefaultReactiveDomain(),
deferUntilFlush = TRUE
)single-element character vector indicating the output ID of the robservable to modify (if invoked from a Shiny module, the namespace will be added automatically)
the Shiny session object to which the robservable belongs; usually the default value will suffice
indicates whether actions performed against this
instance should be carried out right away, or whether they should be held
until after the next time all of the outputs are updated; defaults to
TRUE
A proxy object which allows to update an already created robservable instance.
Normally, you create a robservable instance using the robservable function.
This creates an in-memory representation of a robservable that you can customize,
print at the R console, include in an R Markdown document, or render as a Shiny output.
In the case of Shiny, you may want to further customize a robservable, even after it is rendered to an output. At this point, the in-memory representation of the robservable is long gone, and the user's web browser has already realized the robservable instance.
This is where robservableProxy comes in. It returns an object that can
stand in for the usual robservable object. The usual robservable functions
can be called, and instead of customizing an in-memory representation,
these commands will execute on the already created robservable instance in
the browser.