does touch id return a password?

I am thinking about using expo with the local authentication and I have a question. I am new to ios/android touch id capabilities.

Does ios and android both actually return a password? Does the fingerprint just open a local store of information i can extra?

I read the documentation LocalAuthentication - Expo Documentation

It just says it returns a boolean but that is not useful for me if the password is needed server side to validate.


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