How to check if a tinyDB tag has any attributes in App Inventor
问题 I need a little help with an issue in App Inventor 2. The case is that I have a JSON result that is parsed, and then have it stored in a tinyDB tag as a list (storeparseData). Problem is that, I have this function done as screen initiates, so to have the tinyDB tag populated with that JSON list and then searched for a specific value on user request. As the app is running and I input a search criteria, I get the following error " The arguments [ empty-string ] are the wrong number of arguments