[Home](./index.md) > [@firebase/auth](./auth.md) > [deleteUser](./auth.deleteuser.md) ## deleteUser() function Deletes and signs out the user. Signature: ```typescript export declare function deleteUser(user: User): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | user | [User](./auth.user.md) | The user. | Returns: Promise<void> ## Remarks Important: this is a security-sensitive operation that requires the user to have recently signed in. If this requirement isn't met, ask the user to authenticate again and then call [reauthenticateWithCredential()](./auth.reauthenticatewithcredential.md).