# MultiFactorSession | JavaScript SDK

# - [firebase](https://firebase.google.com/docs/reference/node/firebase).
- [auth](https://firebase.google.com/docs/reference/node/firebase.auth).
- MultiFactorSession

The multi-factor session object used for enrolling a second factor on a
user or helping sign in an enrolled user with a second factor.

## Index

### Constructors

- [constructor](https://firebase.google.com/docs/reference/node/firebase.auth.multifactorsession#constructor)

## Constructors

### Private constructor

- new MultiFactorSession ( ) : [MultiFactorSession](https://firebase.google.com/docs/reference/node/firebase.auth.multifactorsession)
-

  #### Returns [MultiFactorSession](https://firebase.google.com/docs/reference/node/firebase.auth.multifactorsession)