# Updater

# Type Alias: Updater\<TInput, TOutput\>

```ts
type Updater<TInput, TOutput> = TOutput | UpdaterFn<TInput, TOutput>;
```

Defined in: [packages/form-core/src/utils.ts:15](https://github.com/TanStack/form/blob/main/packages/form-core/src/utils.ts#L15)

## Type Parameters

### TInput

`TInput`

### TOutput

`TOutput` = `TInput`