[Home](./index.md) > [@firebase/auth](./auth.md) > [ConfirmationResult](./auth.confirmationresult.md) ## ConfirmationResult interface A result from a phone number sign-in, link, or reauthenticate call. Signature: ```typescript export interface ConfirmationResult ``` ## Properties | Property | Type | Description | | --- | --- | --- | | [verificationId](./auth.confirmationresult.verificationid.md) | string | The phone number authentication operation's verification ID. | ## Methods | Method | Description | | --- | --- | | [confirm(verificationCode)](./auth.confirmationresult.confirm.md) | Finishes a phone number sign-in, link, or reauthentication. |