Listener class
A Listener object provides a simple, programmatically
controlled HTTP protocol listener.
FUNReturns function response.
eventReturns event type.
initialize(FUN, event)Sets instance object function and event state.
new()
Listener$new(event, FUN, ...)
clone()
The objects of this class are cloneable with this method.
Listener$clone(deep = FALSE)
deepWhether to make a deep clone.
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.