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Last updated 2022-07-27 UTC.
[null,null,["Last updated 2022-07-27 UTC."],[],[],null,["- [firebase](/docs/reference/node/firebase).\n- [auth](/docs/reference/node/firebase.auth).\n- MultiFactorAssertion \nThe base class for asserting ownership of a second factor. This is used to\nfacilitate enrollment of a second factor on an existing user\nor sign-in of a user who already verified the first factor.\n\nIndex\n\nProperties\n\n- [factorId](/docs/reference/node/firebase.auth.multifactorassertion#factorid)\n\nProperties\n\nfactorId \nfactorId: string \nThe identifier of the second factor."]]
The base class for asserting ownership of a second factor. This is used to facilitate enrollment of a second factor on an existing user or sign-in of a user who already verified the first factor.