snapshot of https://github.com/TanStack/query.git (main, 2026-09-16; blobs > 131072B omitted)

docs/framework/lit/reference/variables/dataTagErrorSymbol.md

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+---
+id: dataTagErrorSymbol
+title: dataTagErrorSymbol
+---
+
+```ts
+const dataTagErrorSymbol: typeof dataTagErrorSymbol;
+```
+
+Defined in: [packages/query-core/src/types.ts:63](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L63)

docs/framework/lit/reference/variables/dataTagSymbol.md

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+---
+id: dataTagSymbol
+title: dataTagSymbol
+---
+
+```ts
+const dataTagSymbol: typeof dataTagSymbol;
+```
+
+Defined in: [packages/query-core/src/types.ts:61](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L61)

docs/framework/lit/reference/variables/defaultScheduler.md

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+---
+id: defaultScheduler
+title: defaultScheduler
+---
+
+```ts
+const defaultScheduler: ScheduleFunction = systemSetTimeoutZero;
+```
+
+Defined in: [packages/query-core/src/notifyManager.ts:19](https://github.com/TanStack/query/blob/main/packages/query-core/src/notifyManager.ts#L19)
+
+Default scheduling function used by the notify manager.
+Schedules the callback with the system's `setTimeout(callback, 0)`.

docs/framework/lit/reference/variables/environmentManager.md

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+---
+id: environmentManager
+title: environmentManager
+---
+
+```ts
+const environmentManager: object;
+```
+
+Defined in: [packages/query-core/src/environmentManager.ts:29](https://github.com/TanStack/query/blob/main/packages/query-core/src/environmentManager.ts#L29)
+
+Manages how TanStack Query detects whether the current runtime should be treated as
+server-side, which disables scheduling refetch timers and changes the default `retry` count
+and `gcTime`. By default, the detection treats a missing `window` (or the presence of a
+`Deno` global) as server.
+
+Override this for runtimes where that default detection would give the wrong answer — for
+example, a Service Worker, where `window` is undefined even though the environment should
+behave like a client.
+
+## Type Declaration
+
+### isServer()
+
+```ts
+isServer: () => boolean;
+```
+
+Returns whether the current runtime should be treated as a server environment.
+
+#### Returns
+
+`boolean`
+
+### setIsServer()
+
+```ts
+setIsServer(isServerValue): void;
+```
+
+Overrides the server check globally.
+
+#### Parameters
+
+##### isServerValue
+
+`IsServerValue`
+
+#### Returns
+
+`void`
+
+## Example
+
+```ts
+import { environmentManager } from '@tanstack/query-core'
+
+environmentManager.setIsServer(() => false)
+```

docs/framework/lit/reference/variables/focusManager.md

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+---
+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.

docs/framework/lit/reference/variables/isServer.md

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+---
+id: isServer
+title: isServer
+---
+
+```ts
+const isServer: boolean;
+```
+
+Defined in: [packages/query-core/src/utils.ts:114](https://github.com/TanStack/query/blob/main/packages/query-core/src/utils.ts#L114)
+
+## Deprecated
+
+use `environmentManager.isServer()` instead.

docs/framework/lit/reference/variables/notifyManager.md

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+---
+id: notifyManager
+title: notifyManager
+---
+
+```ts
+const notifyManager: object;
+```
+
+Defined in: [packages/query-core/src/notifyManager.ts:144](https://github.com/TanStack/query/blob/main/packages/query-core/src/notifyManager.ts#L144)
+
+Handles scheduling and batching callbacks in TanStack Query.
+
+## Type Declaration
+
+### batch()
+
+```ts
+readonly batch: <T>(callback) => T;
+```
+
+Batches all updates scheduled inside the passed callback.
+This is mainly used internally to optimize query client updating.
+Batches can be nested; the queue is only flushed once the outermost `batch` call finishes.
+The return value of `callback` is passed through.
+
+#### Type Parameters
+
+##### T
+
+`T`
+
+#### Parameters
+
+##### callback
+
+() => `T`
+
+#### Returns
+
+`T`
+
+### batchCalls()
+
+```ts
+readonly batchCalls: <T>(callback) => BatchCallsCallback<T>;
+```
+
+All calls to the wrapped function will be batched.
+
+#### Type Parameters
+
+##### T
+
+`T` *extends* `unknown`[]
+
+#### Parameters
+
+##### callback
+
+`BatchCallsCallback`\<`T`\>
+
+#### Returns
+
+`BatchCallsCallback`\<`T`\>
+
+### schedule()
+
+```ts
+schedule: (callback) => void;
+```
+
+Schedules a function to be run on the next batch.
+By default, the batch is run with a `setTimeout`, but this can be configured via `setScheduler`.
+
+#### Parameters
+
+##### callback
+
+`NotifyCallback`
+
+#### Returns
+
+`void`
+
+### setBatchNotifyFunction()
+
+```ts
+readonly setBatchNotifyFunction: (fn) => void;
+```
+
+Use this method to set a custom function to batch notifications together into a single tick.
+Framework adapters use this to plug in their own batching primitive, so that a single query
+update only triggers one re-render instead of one per subscriber.
+
+#### Parameters
+
+##### fn
+
+`BatchNotifyFunction`
+
+#### Returns
+
+`void`
+
+#### Example
+
+```ts
+import { notifyManager } from '@tanstack/query-core'
+import { batch } from 'solid-js'
+
+notifyManager.setBatchNotifyFunction(batch)
+```
+
+### setNotifyFunction()
+
+```ts
+readonly setNotifyFunction: (fn) => void;
+```
+
+Use this method to set a custom notify function.
+This can be used to for example wrap notifications with `React.act` while running tests.
+
+#### Parameters
+
+##### fn
+
+`NotifyFunction`
+
+#### Returns
+
+`void`
+
+### setScheduler()
+
+```ts
+readonly setScheduler: (fn) => void;
+```
+
+Configures a custom callback that schedules when the next batch runs.
+The default behavior is `setTimeout(callback, 0)`.
+
+#### Parameters
+
+##### fn
+
+`ScheduleFunction`
+
+#### Returns
+
+`void`
+
+#### Example
+
+```ts
+import { notifyManager } from '@tanstack/query-core'
+
+// Schedule batches in the next microtask
+notifyManager.setScheduler(queueMicrotask)
+
+// Schedule batches before the next frame is rendered
+notifyManager.setScheduler(requestAnimationFrame)
+
+// Schedule batches some time in the future
+notifyManager.setScheduler((cb) => setTimeout(cb, 10))
+```

docs/framework/lit/reference/variables/onlineManager.md

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+---
+id: onlineManager
+title: onlineManager
+---
+
+```ts
+const onlineManager: OnlineManager;
+```
+
+Defined in: [packages/query-core/src/onlineManager.ts:117](https://github.com/TanStack/query/blob/main/packages/query-core/src/onlineManager.ts#L117)
+
+Singleton instance of [OnlineManager](../interfaces/OnlineManager.md), used to manage and observe the online state within TanStack Query.

docs/framework/lit/reference/variables/queryClientContext.md

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+---
+id: queryClientContext
+title: queryClientContext
+---
+
+```ts
+const queryClientContext: object;
+```
+
+Defined in: [packages/lit-query/src/context.ts:11](https://github.com/TanStack/query/blob/main/packages/lit-query/src/context.ts#L11)
+
+Lit context key used by `QueryClientProvider` and host-bound APIs to share a
+`QueryClient` through the DOM tree.
+
+Most applications use `QueryClientProvider` instead of interacting with this
+context directly.

docs/framework/lit/reference/variables/skipToken.md

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+---
+id: skipToken
+title: skipToken
+---
+
+```ts
+const skipToken: typeof skipToken;
+```
+
+Defined in: [packages/query-core/src/utils.ts:522](https://github.com/TanStack/query/blob/main/packages/query-core/src/utils.ts#L522)
+
+Sentinel value that can be passed as a query's `queryFn` to conditionally disable the query (equivalent
+to `enabled: false`) while preserving full type inference for the query's data. Unlike `enabled: false`,
+a query disabled via `skipToken` cannot be triggered with `refetch`.
+
+## Example
+
+```ts
+new QueryObserver(queryClient, {
+  queryKey: ['post', postId],
+  queryFn: postId != null ? () => fetchPost(postId) : skipToken,
+})
+```

docs/framework/lit/reference/variables/timeoutManager.md

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+---
+id: timeoutManager
+title: timeoutManager
+---
+
+```ts
+const timeoutManager: TimeoutManager;
+```
+
+Defined in: [packages/query-core/src/timeoutManager.ts:232](https://github.com/TanStack/query/blob/main/packages/query-core/src/timeoutManager.ts#L232)
+
+Singleton instance of [TimeoutManager](../interfaces/TimeoutManager.md), used throughout TanStack Query to schedule and cancel timers.

docs/framework/lit/reference/variables/unsetMarker.md

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+---
+id: unsetMarker
+title: unsetMarker
+---
+
+```ts
+const unsetMarker: typeof unsetMarker;
+```
+
+Defined in: [packages/query-core/src/types.ts:65](https://github.com/TanStack/query/blob/main/packages/query-core/src/types.ts#L65)