How about add "isEmpty()" to vars ?

[yellowbean]

for vars with type of dict or list

I usually to create extra variable to serve as flag to display a component or not .

class FormState(rx.State):

  messages: list[str]
  user: dict[str, str]

  @rx.var
  def isMessagesEmpty() -> bool :
      return len(self.messages)==0

  @rx.var
  def isUserEmpty() -> bool :
      return len(self.user.keys())==0

Then in the UI component..

rx.cond(State.isUserEmpty ....)

Would it be better off to save noise code by adding a method like isEmpty() to the vars ?

class FormState(rx.State):

    messages: list[str]
    user: dict[str, str]

Then in the UI component..

rx.cond(State.user.isEmpty() ....)

[masenf]

If you just use the list/dict var directly in the cond does it not work?