Password Requirements when making an account with Firebase

Question

What are the requirements to avoid throwing the "auth/weak-password" error code on the firebase.auth().createUserWithEmailAndPassword(email, password).

I would like to show the user the requirements so they don't have to throw the error several times on the way to create an account.

I have checked the firebase documentation: https://firebase.google.com/docs/reference/js/firebase.auth.Auth

and stack overflow but have not found this info.

Answer 1

The only weakness test I'm aware of is length less than 6 characters:

public final class FirebaseAuthWeakPasswordException extends FirebaseAuthInvalidCredentialsException

Thrown when using a weak password (less than 6 chars) to create a new account or to update an existing account's password. Use getReason() to get a message with the reason the validation failed that you can display to your users.

Excerpted from this documentation.