voluptasmollitia/docs-exp/auth.issigninwithemaillink.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/auth](./auth.md) &gt; [isSignInWithEmailLink](./auth.issigninwithemaillink.md)

## isSignInWithEmailLink() function

Checks if an incoming link is a sign-in with email link suitable for [signInWithEmailLink()](./auth.signinwithemaillink.md)<!-- -->.

<b>Signature:</b>

```typescript
export declare function isSignInWithEmailLink(auth: Auth, emailLink: string): boolean;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  auth | [Auth](./auth.auth.md) | The Auth instance. |
|  emailLink | string | The link sent to the user's email address. |

<b>Returns:</b>

boolean