R Shiny selectize.js item creation

Question

selectize.js has an item creation option as mentioned on http://brianreavis.github.io/selectize.js/. I'm trying to add the same feature in an R Shiny implementation of selectize but unable to figure out how.

Thanks for your help!

PS: Some more details about what exactly I'm doing - I have some sort of free text vector that I let the user add to. However, I want Shiny to prompt the user with the existing free text values that have previously been added in case the user wants to repeat one of them.

Answer 1

All you have to do is to set create option to true:

library(shiny)
shinyApp(
  server = function(input, output, session) {
      observe({ print(input$foo) })
  },
  ui = fluidPage(
    selectizeInput(
       "foo", "foo", c(), selected = NULL, multiple = TRUE,
       options = list(create = TRUE))
  )
)