Spinner loading before action button is pressed

shiny
2

you can pass a NULL renderDT to Test so that it 'renders' , thereby not spinning.
Then when you observe event, you redefine Test to render your desired table

server <- function(input, output, session) {
  
  output$Test <- DT::renderDT(NULL)
  
  observeEvent(input$plot, {
    output$Test <- DT::renderDT(DT::datatable(head(iris),
      rownames = FALSE, options = list(
        dom = "t",
        ordering = FALSE
      )
    ))
  })
}
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