shiny
htmltools
req()
seq()
on.exit()
observe()
isolate
observeEvent
eventReactive
reactiveTimer()
invalidateLater(ms)
git
Then if you modify the value of the new object.
y2$b <- 2
Then the original object also changes.
y1 |> unlist()
## <Y> ## Public: ## a: 1 ## b: 2 ## clone: function (deep = FALSE)