After TinyDB database is loaded, its return value?

MIT App Inventor Help
1

a

Picture above. After the TinyDB database is loaded, its return value may be empty.

b

Pictured above. After the TinyWebDB database is loaded, is it possible that its return value is empty?

2

Yeah it is possible

3

How its possible. I think not possible.... :thinking:

4

TinyWebDB works asynchronously, i.e. it takes a little bit of time until a result will be returned in the TinyWebDB.GotValue event and usually will return an empty string, if the tag is not available or has been set to empty string previously
see also Storage

It is up to the Web service what to return if there is no value stored under the tag .

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