[Home](./index.md) > [@firebase/auth](./auth.md) > [ActionCodeURL](./auth.actioncodeurl.md) > [operation](./auth.actioncodeurl.operation.md) ## ActionCodeURL.operation property The action performed by the email action link. It returns from one of the types from [ActionCodeInfo](./auth.actioncodeinfo.md) Signature: ```typescript readonly operation: ActionCodeOperation; ```