Load variables from shiny app to RGlobalEnv

Conferences & Events Contests
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you should think very hard about if using global env variables is wise, there are probably some good use cases but they would be rare I think, best avoided where possible.
That said, it's incorrect to use eventReactive when you are not making a reactive value but doing an observe type action so replace the eventReactive with

  observeEvent(input$submit,{
    cat("submitted\n")
    assign("data", text_reactive$text,envir=.GlobalEnv)
    datafromglob <- get("data",envir = .GlobalEnv)
   cat("data from glob is \n",datafromglob,"\n")                 
  })