EVOLUTION-MANAGER
Edit File: server.R
library(shiny) library(shinyBS) shinyServer( function(input, output, session) { output$exampleOutput <- renderText({ num1 <- as.numeric(input$num1) num2 <- as.numeric(input$num2) if(is.na(num1) | is.na(num2)) { createAlert(session, "alert", "exampleAlert", title = "Oops", content = "Both inputs should be numeric.", append = FALSE) } else if(num2 == 0) { createAlert(session, "alert", "exampleAlert", title = "Oops", content = "You cannot divide by 0.", append = FALSE) } else { closeAlert(session, "exampleAlert") return(num1/num2) } }) } )