--- id: focusManager title: focusManager --- ```ts const focusManager: FocusManager; ``` Defined in: [packages/query-core/src/focusManager.ts:142](https://github.com/TanStack/query/blob/main/packages/query-core/src/focusManager.ts#L142) Singleton instance of [FocusManager](../interfaces/FocusManager.md), used to manage and observe the focus state within TanStack Query.