R: Remove UI objects

removeUI {shiny} | R Documentation

## Remove UI objects

### Description

Remove a UI object from the app.

### Usage

    removeUI(selector, multiple = FALSE, immediate = FALSE,
      session = getDefaultReactiveDomain())

### Arguments

`selector` | A string that is accepted by jQuery's selector (i.e. the string `s` to be placed in a `$(s)` jQuery call). This selector will determine the element(s) to be removed. If you want to remove a Shiny input or output, note that many of these are wrapped in `div`s, so you may need to use a somewhat complex selector – see the Examples below. (Alternatively, you could also wrap the inputs/outputs that you want to be able to remove easily in a `div` with an id.)
`multiple` | In case your selector matches more than one element, `multiple` determines whether Shiny should remove all the matched elements or just the first matched element (default).
`immediate` | Whether the element(s) should be immediately removed from the app when you call `removeUI`, or whether Shiny should wait until all outputs have been updated and all observers have been run (default).
`session` | The shiny session within which to call `removeUI`.

### Details

This function allows you to remove any part of your UI. Once `removeUI` is executed on some element, it is gone forever.

While it may be a particularly useful pattern to pair this with `insertUI` (to remove some UI you had previously inserted), there is no restriction on what you can use `removeUI` on. Any element that can be selected through a jQuery selector can be removed through this function.

### See Also

`insertUI`

### Examples

    ## Only run this example in interactive R sessions
    if (interactive()) {
    # Define UI
    ui <- fluidPage(
      actionButton("rmv", "Remove UI"),
      textInput("txt", "This is no longer useful")
    )

    # Server logic
    server <- function(input, output, session) {
      observeEvent(input$rmv, {
        removeUI(
          selector = "div:has(> #txt)"
        )
      })
    }

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

[Package shiny version 1.2.0 Index]