Questions tagged [rxjs]
A JavaScript library that uses observables to work with reactive programming that deals with asynchronous data calls, callbacks and event-based programs.
21,023
questions
2
votes
1
answer
17
views
How to use the retry from Rxjs to my await function?
I have to return an await function from my code block, now when the await function is called and failed on the first try, I want to retry it again and if it failed on the second time.. I will show an ...
- 49
1
vote
2
answers
23
views
Replacing a nested subscribe when getting multiple details from one initial call for ids
So I'm making a few calls to two back-end services, the first is to get the IDs of "big" items and the rest are separate calls to get the details of each "big" item using its ID.
I'...
- 447
0
votes
2
answers
49
views
Using async/await with a service call
I'm having trouble understanding how to use async/await in this scenario. I have a function GetAdditionalProducts() that calls a service and returns a result. I call that function elsewhere where I ...
- 1,761
1
vote
1
answer
29
views
Angular Signals inside effect()
In a component, I am accessing item_id as input parameter.
Where can I call toSignal() or .subscribe() to service method, if it is not allowed inside constructor / ngOnInit() effect()?
item_id = ...
1
vote
2
answers
28
views
Rxjs concatMap that resolves to switchMap
Could you please clarify what is going on here and whether this is a legitimate approach?
I have a method for fetching data. When data is fetched, I want to store it in a BehaviorSubject:
test$ = new ...
- 341
1
vote
1
answer
19
views
Is there an operator to do a "tap only if" in RxJS? A conditional tap action
observable.pipe(
tap((booleanValue) => {
if (booleanValue) {
doSomething();
}
}),
)
Is there a best practice or a better way to do this?
I don't want to filter because the data ...
- 3,686
3
votes
2
answers
122
views
Looping through Observable and mapping result cuncurrently
I have a NgRx selector data$: Observable<Data[]> which contains array of objects. Inside my component I need to go through each data item and make two HTTP calls. One is conditional (based on ...
- 63
1
vote
3
answers
45
views
Why RXJS filter operator not working here?
I have a switchMap that I need to check for additional condition before I go into subscribe, in this I want to pick out the studyId that matches with the provided studyId I got:
this.studyIdObs$....
- 189
1
vote
1
answer
26
views
Angular State of ComponentStore<T>.updater is undefined
I have this ComponentStore
@Injectable({
providedIn: 'root',
})
export class SceneGraphStore extends ComponentStore<SceneGraphState> {
private readonly sceneGraphUtils = new SceneGraphUtils()...
- 11
1
vote
1
answer
13
views
React.js with rxjs - subscribing inside the store file "fixes" the app
I'm trying out react.js with rxjs. I have build a simple Game Of Life implementation with the option to "bomb" the elements. If I subscribe to my state Observable in the React component, ...
- 31
0
votes
0
answers
21
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SuiteCrm 8.6 Angular list rerender based on custom filters button [closed]
I am creating custom filters button and passing payload in
suiteCrm 8.6 Angular component to rerender recordn list in accounts and leads, more .....
I have successfully cloned the payload and passed ...
1
vote
2
answers
26
views
Obtain Angular Events Fired During Navigation To A Page
I would like to obtain a list of all Angular router events which were fired during the navigation to a particular view. Yes, I understand in most cases this will be the same.
I know how to subscribe ...
- 4,079
1
vote
1
answer
42
views
How can I increase the variable in the background using Date() in react js?
I have written code that should increment the strong variable every 10 seconds in the background using module Date()
import React, { useState, useEffect } from "react";
export default ...
- 13
0
votes
0
answers
43
views
How to apply declarative RXJS in Angular for route resolvers
I'm interested in adapting the following code for route resolvers.
private categorySubject = new Subject<number>();
categorySelectedAction$ = this.categorySubject.asObservable();
...
- 141
0
votes
0
answers
16
views
Struggling with mapping a nested Apollo query result to another value
I have a use case in Angular Apollo that looks something like:
eval(someId: number): Observable<string | Error> {
return this.apollo.query<FirstQuery>({
query: FirstDocument,
...
- 3,817