# DefinedInitialDataInfiniteOptions

```ts
type DefinedInitialDataInfiniteOptions<TQueryFnData, TError, TData, TQueryKey, TPageParam> = UseInfiniteQueryOptions<TQueryFnData, TError, TData, TQueryKey, TPageParam> & object;
```

Defined in: [packages/preact-query/src/infiniteQueryOptions.ts:101](https://github.com/TanStack/query/blob/main/packages/preact-query/src/infiniteQueryOptions.ts#L101)

The options accepted by the `infiniteQueryOptions` overload selected when `initialData` is set — `data` is
never `undefined` (unless a `select` changes `TData` to include `undefined`).

## Type Declaration

### initialData

```ts
initialData: 
  | NonUndefinedGuard<InfiniteData<TQueryFnData, TPageParam>>
  | (() => NonUndefinedGuard<InfiniteData<TQueryFnData, TPageParam>>)
  | undefined;
```

If set, this value will be used as the initial data for the query cache (as long as the query hasn't been
created or cached yet). If set to a function, the function will be called **once** during the shared/root
query initialization, and be expected to synchronously return the initial data. Initial data is
considered stale by default unless a `staleTime` has been set. `initialData` **is persisted** to the
cache.

## Type Parameters

### TQueryFnData

`TQueryFnData`

The type of a single page, as your `queryFn` resolves it.

### TError

`TError` = [`DefaultError`](DefaultError.md)

The type of errors your `queryFn` may throw.

### TData

`TData` = [`InfiniteData`](../interfaces/InfiniteData.md)\<`TQueryFnData`\>

The type `data` ends up as after `select` runs — defaults to `InfiniteData<TQueryFnData>`,
the shape of all fetched pages plus their page params.

### TQueryKey

`TQueryKey` *extends* [`QueryKey`](QueryKey.md) = [`QueryKey`](QueryKey.md)

The type of your `queryKey`.

### TPageParam

`TPageParam` = `unknown`

The type of the parameter passed to `queryFn` to fetch a given page.