Questions tagged [rxjs-pipe]
7 questions
187
votes
5 answers
What is pipe() function in Angular
Pipes are filters for transforming data (formats) in the template.
I came across the pipe() function as below. What does this pipe() function exactly mean in this case?
return this.http.get(url)
.pipe(
tap(_ => this.log(`fetched hero…
Dinesh Sharma
- 2,117
- 3
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- 9
3
votes
1 answer
How to continue catchError in timer (rxjs)
I have a service that is responsible to execute a httpClient.get every x seconds, using a timer.
I need this timer to start running whenever the service is up, so the timer is defined in the service constructor. According to my understanding, the…
Guy E
- 1,775
- 2
- 27
- 55
2
votes
1 answer
Best practices for avoiding memory leaks in angular
I'm trying detect and fix potential memory leaks in my angular/spartacus application.
So basically I'm looking for any "subscribe(..." calls in my code base and evaluate what I can do.
I know that simplest form is simply to use observables directly…
Sergej Bjakow
- 21
- 1
1
vote
1 answer
onClick to subscribe to observable. Action expression cannot contain pipes
Hi I have a ShopItemComponent. I want it to take a function as an input so that when a button in shop-item.component.html is clicked, the function gets called. inside the function in shop-item.component.html is an observable, the function subscribes…
STH
- 73
- 6
1
vote
1 answer
Angular and RxJS - subscribe function for forkjoin not executing
In the code below, the subscribe function is not run ('Never called' does not appear in the console); however, the three services are called.
ngOnInit(): void {
forkJoin([this.adminBCService.getAvailableBusinessCases(),…
nstuyvesant
- 1,392
- 2
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- 43
0
votes
0 answers
Angular - rxjs : How to add filter to check if measures.length > 0 and then proceed with tap
I am new to Angular and rxjs. Please guide me how can I apply filter to check if data is available in 'measures' before opening the _showMeasureSelectionModal in the following function.
selectMeasure() {
combineLatest([this.configure.measure$,…
Tidi
- 95
- 1
- 6
0
votes
2 answers
Angular Rxjs: Have concat wait for a very long tap
I'm trying to automatize a process of updating some data in the backend of my program.
I'm using my Angular frontend, where I created a function only the master user can access and that should make him login in every administration (tenant), where…
