autonumericInput(): How do I distinguish between no input and input=0?

[SteveDonohoWB]

When I check input$num for an autonumericInput with inputId = "num", the value is zero for no input and for input=0. How do I tell the difference? The output of the code below is 0 for both no input and 0.

library(shiny)
library(shinyWidgets)

ui <- fluidPage(
shinyWidgets::autonumericInput(
inputId = "num",
label = "Enter a number:",
value = NA # I also tried NULL. Same result.
)
)

server <- function(input, output) {
observe({
print(input$num)
})
}

shinyApp(ui = ui, server = server)

Using shinyWidgets_0.6.0
R version 3.5.3 (2019-03-11)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Amazon Linux 2

[bolek193]

ol

[bolek193]

When I check input$num for an autonumericInput with inputId = "num", the value is zero for no input and for input=0. How do I tell the difference? The output of the code below is 0 for both no input and 0.

library(shiny)
library(shinyWidgets)

ui <- fluidPage(
shinyWidgets::autonumericInput(
inputId = "num",
label = "Enter a number:",
value = NA # I also tried NULL. Same result.
)
)

server <- function(input, output) {
observe({
print(input$num)
})
}

shinyApp(ui = ui, server = server)

Using shinyWidgets_0.6.0
R version 3.5.3 (2019-03-11)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Amazon Linux 2

[pvictor]

Hello @SteveDonohoWB ,

Thanks for reporting this, if you re-install from GitHub this should be fixed.
I added an argument emptyInputBehavior to define the value if the input is empty with default to "null".

Victor

[SteveDonohoWB]

Thank you. I will try it out.

[SteveDonohoWB]

Works great! Thanks!