textInput with validation
textInputWithValidation(inputId, label, container_id = NULL, help_id = NULL)The input slot that will be used to access the value.
Display label for the control, or NULL for no label.
id for outer div (optional). Can use e.g. to add 'has-error' class to style inputs
with shinyjs::addClass.
id for span with class 'help-block' below input (optional). Can be used for add
error message with shinyjs::html.