[API reference](https://evolu.dev/docs/api-reference) › [@evolu/common](https://evolu.dev/docs/api-reference/common) › Task JavaScript-native structured concurrency. ## Core Types | Name | Description | | ------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [AbortError](https://evolu.dev/docs/api-reference/common/Task/interfaces/AbortError) | Error returned when a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) is aborted via [AbortSignal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal). | | [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber) | `Fiber` is a handle to a running [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) that can be awaited, aborted, or disposed. | | [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) | Runs a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) with [structured concurrency](https://en.wikipedia.org/wiki/Structured_concurrency) semantics. | | [RunSnapshot](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunSnapshot) | A recursive snapshot of a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) tree. | | [NextTask](https://evolu.dev/docs/api-reference/common/Task/type-aliases/NextTask) | A [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) that can complete with a value, signal done, or fail. | | [RunState](https://evolu.dev/docs/api-reference/common/Task/type-aliases/RunState) | The lifecycle state of a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run). | | [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) | JavaScript-native structured concurrency. | | [AbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AbortError) | Error returned when a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) is aborted via [AbortSignal](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal). | ## Creating Run | Name | Description | | ---------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [CreateRun](https://evolu.dev/docs/api-reference/common/Task/interfaces/CreateRun) | Factory type for creating root [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) instances. | | [RunStoppedError](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunStoppedError) | Abort reason indicating a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) can no longer start new Tasks. | | [createRun](https://evolu.dev/docs/api-reference/common/Task/variables/createRun) | Creates root [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run). | | [runStoppedError](https://evolu.dev/docs/api-reference/common/Task/variables/runStoppedError) | Shared [RunStoppedError](https://evolu.dev/docs/api-reference/common/Task/variables/RunStoppedError-1) instance used as the default [AbortError.reason](https://evolu.dev/docs/api-reference/common/Task/interfaces/AbortError#reason) when a Task is started on a non-running [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run). | | [RunStoppedError](https://evolu.dev/docs/api-reference/common/Task/variables/RunStoppedError-1) | Abort reason indicating a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) can no longer start new Tasks. | ## Abort masking | Name | Description | | -------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- | | [AbortMask](https://evolu.dev/docs/api-reference/common/Task/type-aliases/AbortMask) | Abort mask depth for a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) or [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber). | | [AbortMask](https://evolu.dev/docs/api-reference/common/Task/variables/AbortMask) | Abort mask depth for a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) or [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber). | | [unabortable](https://evolu.dev/docs/api-reference/common/Task/variables/unabortable) | Makes a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) unabortable. | | [unabortableMask](https://evolu.dev/docs/api-reference/common/Task/functions/unabortableMask) | Like [unabortable](https://evolu.dev/docs/api-reference/common/Task/variables/unabortable), but provides `restore` to restore abortability for specific tasks. | ## Composition | Name | Description | | -------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [AllAbortError](https://evolu.dev/docs/api-reference/common/Task/interfaces/AllAbortError) | Abort reason used by [all](https://evolu.dev/docs/api-reference/common/Task/functions/all) when aborting remaining tasks. | | [AllSettledAbortError](https://evolu.dev/docs/api-reference/common/Task/interfaces/AllSettledAbortError) | Abort reason used by [allSettled](https://evolu.dev/docs/api-reference/common/Task/functions/allSettled) when aborted externally. | | [AnyAbortError](https://evolu.dev/docs/api-reference/common/Task/interfaces/AnyAbortError) | Abort reason used by [any](https://evolu.dev/docs/api-reference/common/Task/functions/any) when aborting remaining tasks. | | [CollectOptions](https://evolu.dev/docs/api-reference/common/Task/interfaces/CollectOptions) | Options for [all](https://evolu.dev/docs/api-reference/common/Task/functions/all), [allSettled](https://evolu.dev/docs/api-reference/common/Task/functions/allSettled), [map](https://evolu.dev/docs/api-reference/common/Task/functions/map), and [mapSettled](https://evolu.dev/docs/api-reference/common/Task/functions/mapSettled). | | [FetchError](https://evolu.dev/docs/api-reference/common/Task/interfaces/FetchError) | Error returned when a [fetch](https://evolu.dev/docs/api-reference/common/Task/functions/fetch) [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) fails. | | [MapAbortError](https://evolu.dev/docs/api-reference/common/Task/interfaces/MapAbortError) | Abort reason used by [map](https://evolu.dev/docs/api-reference/common/Task/functions/map) when aborting remaining tasks. | | [RaceLostError](https://evolu.dev/docs/api-reference/common/Task/interfaces/RaceLostError) | Abort reason for tasks that lose a [race](https://evolu.dev/docs/api-reference/common/Task/functions/race). | | [RepeatAttempt](https://evolu.dev/docs/api-reference/common/Task/interfaces/RepeatAttempt) | Info passed to [repeat](https://evolu.dev/docs/api-reference/common/Task/functions/repeat) [RepeatOptions.onRepeat](https://evolu.dev/docs/api-reference/common/Task/interfaces/RepeatOptions#onrepeat) callback. | | [RepeatOptions](https://evolu.dev/docs/api-reference/common/Task/interfaces/RepeatOptions) | Options for [repeat](https://evolu.dev/docs/api-reference/common/Task/functions/repeat). | | [RetryAttempt](https://evolu.dev/docs/api-reference/common/Task/interfaces/RetryAttempt) | Info passed to [retry](https://evolu.dev/docs/api-reference/common/Task/functions/retry) [RetryOptions.onRetry](https://evolu.dev/docs/api-reference/common/Task/interfaces/RetryOptions#onretry) callback. | | [RetryError](https://evolu.dev/docs/api-reference/common/Task/interfaces/RetryError) | Error returned when all retry attempts are exhausted. | | [RetryOptions](https://evolu.dev/docs/api-reference/common/Task/interfaces/RetryOptions) | Options for [retry](https://evolu.dev/docs/api-reference/common/Task/functions/retry). | | [TimeoutError](https://evolu.dev/docs/api-reference/common/Task/interfaces/TimeoutError) | Typed error returned by [timeout](https://evolu.dev/docs/api-reference/common/Task/functions/timeout) when a task exceeds its time limit. | | [allAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/allAbortError) | [AllAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AllAbortError-1) used as abort reason in [all](https://evolu.dev/docs/api-reference/common/Task/functions/all). | | [AllAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AllAbortError-1) | Abort reason used by [all](https://evolu.dev/docs/api-reference/common/Task/functions/all) when aborting remaining tasks. | | [allSettledAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/allSettledAbortError) | [AllSettledAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AllSettledAbortError-1) used as abort reason in [allSettled](https://evolu.dev/docs/api-reference/common/Task/functions/allSettled). | | [AllSettledAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AllSettledAbortError-1) | Abort reason used by [allSettled](https://evolu.dev/docs/api-reference/common/Task/functions/allSettled) when aborted externally. | | [anyAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/anyAbortError) | [AnyAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AnyAbortError-1) used as abort reason in [any](https://evolu.dev/docs/api-reference/common/Task/functions/any). | | [AnyAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/AnyAbortError-1) | Abort reason used by [any](https://evolu.dev/docs/api-reference/common/Task/functions/any) when aborting remaining tasks. | | [FetchError](https://evolu.dev/docs/api-reference/common/Task/variables/FetchError) | Error returned when a [fetch](https://evolu.dev/docs/api-reference/common/Task/functions/fetch) [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) fails. | | [mapAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/mapAbortError) | [MapAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/MapAbortError-1) used as abort reason in [map](https://evolu.dev/docs/api-reference/common/Task/functions/map). | | [MapAbortError](https://evolu.dev/docs/api-reference/common/Task/variables/MapAbortError-1) | Abort reason used by [map](https://evolu.dev/docs/api-reference/common/Task/functions/map) when aborting remaining tasks. | | [raceLostError](https://evolu.dev/docs/api-reference/common/Task/variables/raceLostError) | [RaceLostError](https://evolu.dev/docs/api-reference/common/Task/variables/RaceLostError-1) used as abort reason in [race](https://evolu.dev/docs/api-reference/common/Task/functions/race). | | [RaceLostError](https://evolu.dev/docs/api-reference/common/Task/variables/RaceLostError-1) | Abort reason for tasks that lose a [race](https://evolu.dev/docs/api-reference/common/Task/functions/race). | | [timeoutError](https://evolu.dev/docs/api-reference/common/Task/variables/timeoutError) | [TimeoutError](https://evolu.dev/docs/api-reference/common/Task/variables/TimeoutError-1) used as abort reason in [timeout](https://evolu.dev/docs/api-reference/common/Task/functions/timeout). | | [TimeoutError](https://evolu.dev/docs/api-reference/common/Task/variables/TimeoutError-1) | Typed error returned by [timeout](https://evolu.dev/docs/api-reference/common/Task/functions/timeout) when a task exceeds its time limit. | | [yieldNow](https://evolu.dev/docs/api-reference/common/Task/variables/yieldNow) | Yields execution to allow other work to proceed. | | [all](https://evolu.dev/docs/api-reference/common/Task/functions/all) | Fails fast on first error across multiple [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s. | | [allSettled](https://evolu.dev/docs/api-reference/common/Task/functions/allSettled) | Completes all [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s regardless of individual failures. | | [any](https://evolu.dev/docs/api-reference/common/Task/functions/any) | Returns the first [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) that succeeds. | | [callback](https://evolu.dev/docs/api-reference/common/Task/functions/callback) | Creates a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) from a callback-based API. | | [concurrently](https://evolu.dev/docs/api-reference/common/Task/functions/concurrently) | Runs tasks concurrently instead of sequentially. | | [fetch](https://evolu.dev/docs/api-reference/common/Task/functions/fetch) | Creates a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) that wraps the native [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API). | | [map](https://evolu.dev/docs/api-reference/common/Task/functions/map) | Maps values to [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s, failing fast on first error. | | [mapSettled](https://evolu.dev/docs/api-reference/common/Task/functions/mapSettled) | Maps values to [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s, completing all regardless of failures. | | [race](https://evolu.dev/docs/api-reference/common/Task/functions/race) | Returns a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) that completes first. | | [repeat](https://evolu.dev/docs/api-reference/common/Task/functions/repeat) | Repeats a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) according to a [Schedule](https://evolu.dev/docs/api-reference/common/Schedule/type-aliases/Schedule). | | [retry](https://evolu.dev/docs/api-reference/common/Task/functions/retry) | Wraps a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) with retry logic. | | [sleep](https://evolu.dev/docs/api-reference/common/Task/functions/sleep) | Pauses execution for a specified duration. | | [timeout](https://evolu.dev/docs/api-reference/common/Task/functions/timeout) | Wraps a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) with a time limit. | ## Concurrency primitives | Name | Description | | -------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [Deferred](https://evolu.dev/docs/api-reference/common/Task/interfaces/Deferred) | A value that can be resolved later. | | [DeferredDisposedError](https://evolu.dev/docs/api-reference/common/Task/interfaces/DeferredDisposedError) | Abort reason used when a [Deferred](https://evolu.dev/docs/api-reference/common/Task/interfaces/Deferred) is disposed. | | [Gate](https://evolu.dev/docs/api-reference/common/Task/interfaces/Gate) | A blocking [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) — like a gate. | | [LeaderLock](https://evolu.dev/docs/api-reference/common/Task/interfaces/LeaderLock) | Cross-platform leader lock abstraction. | | [LeaderLockDep](https://evolu.dev/docs/api-reference/common/Task/interfaces/LeaderLockDep) | - | | [Mutex](https://evolu.dev/docs/api-reference/common/Task/interfaces/Mutex) | A mutex (mutual exclusion) that ensures only one [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) runs at a time. | | [MutexByKey](https://evolu.dev/docs/api-reference/common/Task/interfaces/MutexByKey) | A keyed [Mutex](https://evolu.dev/docs/api-reference/common/Task/interfaces/Mutex) registry. | | [MutexRef](https://evolu.dev/docs/api-reference/common/Task/interfaces/MutexRef) | [Ref](https://evolu.dev/docs/api-reference/common/Ref/interfaces/Ref) protected by a [Mutex](https://evolu.dev/docs/api-reference/common/Task/interfaces/Mutex). | | [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) | A semaphore that limits the number of concurrent [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s. | | [SemaphoreByKey](https://evolu.dev/docs/api-reference/common/Task/interfaces/SemaphoreByKey) | A keyed [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) registry. | | [SemaphoreDisposedError](https://evolu.dev/docs/api-reference/common/Task/interfaces/SemaphoreDisposedError) | Abort reason used when a [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) is disposed. | | [Concurrency](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Concurrency) | Maximum number of concurrent Tasks. | | [deferredDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/deferredDisposedError) | [DeferredDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/DeferredDisposedError-1) used as abort reason in [createDeferred](https://evolu.dev/docs/api-reference/common/Task/functions/createDeferred). | | [DeferredDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/DeferredDisposedError-1) | Abort reason used when a [Deferred](https://evolu.dev/docs/api-reference/common/Task/interfaces/Deferred) is disposed. | | [semaphoreDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/semaphoreDisposedError) | [SemaphoreDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/SemaphoreDisposedError-1) used as abort reason in [createSemaphore](https://evolu.dev/docs/api-reference/common/Task/functions/createSemaphore). | | [SemaphoreDisposedError](https://evolu.dev/docs/api-reference/common/Task/variables/SemaphoreDisposedError-1) | Abort reason used when a [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) is disposed. | | [createDeferred](https://evolu.dev/docs/api-reference/common/Task/functions/createDeferred) | Creates a [Deferred](https://evolu.dev/docs/api-reference/common/Task/interfaces/Deferred). | | [createGate](https://evolu.dev/docs/api-reference/common/Task/functions/createGate) | Creates a [Gate](https://evolu.dev/docs/api-reference/common/Task/interfaces/Gate) that starts closed. | | [createInMemoryLeaderLock](https://evolu.dev/docs/api-reference/common/Task/functions/createInMemoryLeaderLock) | Creates an in-process [LeaderLock](https://evolu.dev/docs/api-reference/common/Task/interfaces/LeaderLock). | | [createMutex](https://evolu.dev/docs/api-reference/common/Task/functions/createMutex) | Creates a [Mutex](https://evolu.dev/docs/api-reference/common/Task/interfaces/Mutex). | | [createMutexByKey](https://evolu.dev/docs/api-reference/common/Task/functions/createMutexByKey) | Creates a [MutexByKey](https://evolu.dev/docs/api-reference/common/Task/interfaces/MutexByKey). | | [createMutexRef](https://evolu.dev/docs/api-reference/common/Task/functions/createMutexRef) | Creates a [MutexRef](https://evolu.dev/docs/api-reference/common/Task/interfaces/MutexRef) with the given initial immutable value. | | [createSemaphore](https://evolu.dev/docs/api-reference/common/Task/functions/createSemaphore) | Creates a [Semaphore](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore) that limits concurrent [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task)s. | | [createSemaphoreByKey](https://evolu.dev/docs/api-reference/common/Task/functions/createSemaphoreByKey) | Creates a [SemaphoreByKey](https://evolu.dev/docs/api-reference/common/Task/interfaces/SemaphoreByKey). | ## Monitoring | Name | Description | | ------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------- | | [RunConfig](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunConfig) | Configuration for [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) behavior. | | [RunEvent](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunEvent) | Events emitted by a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) for monitoring and debugging. | | [RunEventData](https://evolu.dev/docs/api-reference/common/Task/type-aliases/RunEventData) | The event-specific payload of a [RunEvent](https://evolu.dev/docs/api-reference/common/Task/variables/RunEvent). | | [RunSnapshotState](https://evolu.dev/docs/api-reference/common/Task/type-aliases/RunSnapshotState) | [RunSnapshot](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunSnapshot) state Type. | | [RunEvent](https://evolu.dev/docs/api-reference/common/Task/variables/RunEvent) | Events emitted by a [Run](https://evolu.dev/docs/api-reference/common/Task/interfaces/Run) for monitoring and debugging. | | [RunEventData](https://evolu.dev/docs/api-reference/common/Task/variables/RunEventData) | The event-specific payload of a [RunEvent](https://evolu.dev/docs/api-reference/common/Task/variables/RunEvent). | | [RunSnapshotState](https://evolu.dev/docs/api-reference/common/Task/variables/RunSnapshotState) | [RunSnapshot](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunSnapshot) state Type. | ## Type utilities | Type Alias | Description | | --------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- | | [AnyTask](https://evolu.dev/docs/api-reference/common/Task/type-aliases/AnyTask) | Shorthand for a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task) with `any` type parameters. | | [InferFiberDeps](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferFiberDeps) | Extracts the deps type from a [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber). | | [InferFiberErr](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferFiberErr) | Extracts the error type from a [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber). | | [InferFiberOk](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferFiberOk) | Extracts the value type from a [Fiber](https://evolu.dev/docs/api-reference/common/Task/interfaces/Fiber). | | [InferTaskDeps](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferTaskDeps) | Extracts the deps type from a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task). | | [InferTaskDone](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferTaskDone) | Extracts the done value type from a [NextTask](https://evolu.dev/docs/api-reference/common/Task/type-aliases/NextTask). | | [InferTaskErr](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferTaskErr) | Extracts the error type from a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task). | | [InferTaskOk](https://evolu.dev/docs/api-reference/common/Task/type-aliases/InferTaskOk) | Extracts the value type from a [Task](https://evolu.dev/docs/api-reference/common/Task/type-aliases/Task). | ## Interfaces | Interface | Description | | --------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------- | | [CreateMutexByKeyOptions](https://evolu.dev/docs/api-reference/common/Task/interfaces/CreateMutexByKeyOptions) | Options for [createMutexByKey](https://evolu.dev/docs/api-reference/common/Task/functions/createMutexByKey). | | [CreateSemaphoreByKeyOptions](https://evolu.dev/docs/api-reference/common/Task/interfaces/CreateSemaphoreByKeyOptions) | Options for [createSemaphoreByKey](https://evolu.dev/docs/api-reference/common/Task/functions/createSemaphoreByKey). | | [RunConfigDep](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunConfigDep) | - | | [RunStateDisposing](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunStateDisposing) | Base interface for objects with a discriminant `type` property. | | [RunStateRunning](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunStateRunning) | Base interface for objects with a discriminant `type` property. | | [RunStateSettled](https://evolu.dev/docs/api-reference/common/Task/interfaces/RunStateSettled) | Base interface for objects with a discriminant `type` property. | | [SemaphoreSnapshot](https://evolu.dev/docs/api-reference/common/Task/interfaces/SemaphoreSnapshot) | Snapshot returned by [Semaphore.snapshot](https://evolu.dev/docs/api-reference/common/Task/interfaces/Semaphore#snapshot). | ## Type Aliases | Type Alias | Description | | ----------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | | [AnyAllFailed](https://evolu.dev/docs/api-reference/common/Task/type-aliases/AnyAllFailed) | Tie-breaker for [any](https://evolu.dev/docs/api-reference/common/Task/functions/any) when all tasks fail. | | [RunDeps](https://evolu.dev/docs/api-reference/common/Task/type-aliases/RunDeps) | Default deps provided by [createRun](https://evolu.dev/docs/api-reference/common/Task/variables/createRun). |