core/src/rxjs/observe/directives/observe.directive.ts
Documentation in ObserveDirective.observe to allow in-template tooltips.
Selector | [observe] |
Properties |
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Methods |
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Inputs |
Outputs |
Accessors |
completeCalled | |
Type : EventEmitter<void>
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Inherited from
ObserveBaseDirective
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Defined in
ObserveBaseDirective:81
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Triggered when the observable completes. |
errorCalled | |
Type : EventEmitter<>
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Inherited from
ObserveBaseDirective
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Defined in
ObserveBaseDirective:75
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Triggered when an error occurs in the observable's pipeline. |
nextCalled | |
Type : EventEmitter<TResolved>
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Inherited from
ObserveBaseDirective
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Defined in
ObserveBaseDirective:69
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Triggered whenever the observable emits a value. |
Static ngTemplateContextGuard | |||||||||
ngTemplateContextGuard(directive: ObserveDirective<T>, context)
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Type parameters:
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Parameters:
Returns:
ObserveContext<T>
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Protected observeInput | ||||||
observeInput(input: T)
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Inherited from
ObserveBaseDirective
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Parameters:
Returns:
Observable<EmittedTypeOf<T>>
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Protected createViewContext | |||||
createViewContext(undefined: literal type)
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Inherited from
ObserveBaseDirective
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Parameters:
Returns:
TContext
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ngOnInit |
ngOnInit()
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Inherited from
ObserveBaseDirective
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Returns:
void
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ngOnDestroy |
ngOnDestroy()
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Inherited from
Destroyable
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Returns:
void
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Protected subscribe | ||||||||||||||||||||
subscribe(observable: Observable
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Inherited from
Destroyable
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Type parameters:
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Subscribes to an observable and stores the subscription for automatic disposal.
When
Parameters:
Returns:
Subscription
The subscription created for the observable. |
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Protected selector |
Type: string
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Default value: 'observe'
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Inherited from
ObserveBaseDirective
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Protected Readonly input |
Type: BehaviorSubject<TInput | null>
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Default value: new BehaviorSubject(null as TInput | null)
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Inherited from
ObserveBaseDirective
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Why BehaviorSubject<s | null> and not Subject<TInput>
This leads to subscribing in ngOnInit, to allow Angular time to initialize those.
BUT, if |
Protected Readonly destroyed |
Type: Subject<void>
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Default value: new Subject()
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Inherited from
Destroyable
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Emits a value when |
Protected Readonly subscriptions |
Type: Subscription
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Default value: new Subscription()
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Inherited from
Destroyable
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A list of all subscriptions manually added using the |
observe | ||||||
setobserve(value: T)
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Tracks an observable and updates the template with its emitted value on each emission. Any template assigned with the directive will render immediately, and its view context will be updated with the emitted value on each emission. The directive will be responsible for subscribing on init and unsubscribing on destroy. FeaturesShared observableThe watched observable will automatically be multicasted so that any child observables created by the template will use the same stream. The shared observable can be accessed using the Observer eventsWhenever the observable changes state or emits a value, the corresponding event is emitted:
Parameters :
Returns:
void
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