[Home](./index.md) > [@firebase/database](./database.md) > [increment](./database.increment.md) ## increment() function Returns a placeholder value that can be used to atomically increment the current database value by the provided delta. Signature: ```typescript export declare function increment(delta: number): object; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | delta | number | the amount to modify the current value atomically. | Returns: object A placeholder value for modifying data atomically server-side.