[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [OrderByDirection](./firestore_lite.orderbydirection.md) ## OrderByDirection type The direction of a [orderBy()](./firestore_.orderby.md) clause is specified as 'desc' or 'asc' (descending or ascending). Signature: ```typescript export declare type OrderByDirection = 'desc' | 'asc'; ```