How to limit the number of characters accepted by textInput in Shiny app

Question

I would like my Shiny app (in R) to limit the number of characters a user can input in response to a textInput command.

I can request the user to limit to 50 chara

Answer 1

You can't add custom attribute to textInput, you could probably be able to write custom function to generate input, but it will be easier to do this in javascript:

shinyjs::runjs("$('#inputName').attr('maxlength', 50)")