Class Reaction

A derivation is everything that can be derived from the state (all the atoms) in a pure manner. See https://medium.com/@mweststrate/becoming-fully-reactive-an-in-depth-explanation-of-mobservable-55995262a254#.xvbh6qd74

Implements

Constructors

constructor

Properties

__mapid _isRunning _isScheduled _isTrackPending dependenciesState diffValue isDisposed isTracing name newObserving observing requiresObservable runId unboundDepsCount

Methods

dispose getDisposer isScheduled onBecomeStale reportExceptionInDerivation runReaction schedule toString trace track

Constructors

constructor

  • new Reaction(name, onInvalidate, errorHandler?, requiresObservable?): Reaction

  • Parameters

    • name: string
    • onInvalidate: (() => void)
        • (): void

        • Returns void

    • OptionalerrorHandler: ((error: any, derivation: IDerivation) => void)
        • (error, derivation): void

        • Parameters

          Returns void

    • OptionalrequiresObservable: boolean

    Returns Reaction

Properties

__mapid

__mapid: string

_isRunning

_isRunning: boolean

_isScheduled

_isScheduled: boolean

_isTrackPending

_isTrackPending: boolean

dependenciesState

dependenciesState: IDerivationState

diffValue

diffValue: number

isDisposed

isDisposed: boolean

isTracing

isTracing: TraceMode

name

name: string

newObserving

newObserving: IObservable[]

observing

observing: IObservable[]

requiresObservable

requiresObservable: boolean

warn if the derivation has no dependencies after creation/update

runId

runId: number

Id of the current run of a derivation. Each time the derivation is tracked this number is increased by one. This number is globally unique

unboundDepsCount

unboundDepsCount: number

amount of dependencies used by the derivation in this run, which has not been bound yet.

Methods

dispose

  • dispose(): void

  • Returns void

getDisposer

isScheduled

  • isScheduled(): boolean

  • Returns boolean

onBecomeStale

  • onBecomeStale(): void

  • Returns void

reportExceptionInDerivation

  • reportExceptionInDerivation(error): void

  • Parameters

    • error: any

    Returns void

runReaction

  • runReaction(): void

  • internal, use schedule() if you intend to kick off a reaction

    Returns void

schedule

  • schedule(): void

  • Returns void

toString

  • toString(): string

  • Returns a string representation of an object.

    Returns string

trace

  • trace(enterBreakPoint?): void

  • Parameters

    • OptionalenterBreakPoint: boolean

    Returns void

track

  • track(fn): void

  • Parameters

    • fn: (() => void)
        • (): void

        • Returns void

    Returns void

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Constructors
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Methods