veritatisdoloremque/docs-exp/auth-types.factorid.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/auth-types](./auth-types.md) &gt; [FactorId](./auth-types.factorid.md)

## FactorId enum

An enum of factors that may be used for multifactor authentication.

<b>Signature:</b>

```typescript
export const enum FactorId 
```

## Enumeration Members

|  Member | Value | Description |
|  --- | --- | --- |
|  PHONE | <code>'phone'</code> | Phone as second factor |