R Shiny removeUI is not working on selectInput

[ImSanjay]

...

I have shiny selectInput with choices and a button. so when I click on the button shiny input has to be remove. But it is removing don't know why it is!. I have used shiny removeUI like below:

library(shiny)

  # Define UI
  ui <- fluidPage(
    actionButton("rmv", "Remove UI"),
    selectInput(
      inputId=paste("FilterOperator",1,sep = "_"),
      label = "",
      choices=sort(unique(c("Begins with","Equals to","Not Equals to","Contains","Not Contains"))),
      multiple=F,
      selectize = F

    )
  )

  # Server logic
  server <- function(input, output, session) {
    observeEvent(input$rmv, {
      removeUI(
        selector = paste("FilterOperator",1,sep="_"),
        multiple = TRUE,
        immediate = TRUE,
        session
      )
    })
  }

  # Complete app with UI and server components
  shinyApp(ui, server)

Is it removeUI wont work on selectInput? please help me anyone on this.

[andresrcs]

removeUI needs a string that is accepted by jQuery's selector

removeUI(
            selector = paste0("div:has(> #FilterOperator", "_", 1, ")"),
            multiple = TRUE,
            immediate = TRUE,
            session
        )

[ImSanjay]

@andresrcs

removeUI( selector = paste0("div:has(> #FilterOperator", "_", 1, ")"), multiple = TRUE, immediate = TRUE, session )

Yes, it is removing UI but not completely. When I am trying to get the value after the removing the above UI, still it is returning with selected value before instead of NULL