# normalizeLiveQueryWindowPageSize

# Function: normalizeLiveQueryWindowPageSize()

```ts
function normalizeLiveQueryWindowPageSize(pageSize): number;
```

Defined in: [packages/db/src/live-query-window-controller.ts:90](https://github.com/TanStack/db/blob/main/packages/db/src/live-query-window-controller.ts#L90)

**`Internal`**

This contract is unstable while RFC #1623 is being implemented.

## Parameters

### pageSize

`number` | `undefined`

## Returns

`number`