angular observable examplE

Add Answer

Doubtful Donkey answered on March 23, 2021 Popularity 1/10 Helpfulness 1/10

answer angular observable examplE

related angular observable pipe exemple

related return observable from function angular

related Observable in angular

related display observable property in html angular

related obeservable from an object angular

related display observable in html angular

related what is observable in angular

angular observable examplE

Comment

import {Observable} from 'rxjs';
const foo = new Observable (subscriber => {
  subscriber.next (42);
  subscriber.next (100);


});
foo.subscriber(x => {
  console.log(x);
});

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: angular-observable javascript

Link to this answer
Share Copy Link

Contributed on Mar 23 2021

Doubtful Donkey

0 Answers Avg Quality 2/10

Closely Related Answers

angular observable pipe exemple

Comment

import { Component, OnInit } from '@angular/core';
import { Observable, of} from 'rxjs';
import { map, filter, tap } from 'rxjs/operators'
 
 
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit {
 
  obs = new Observable((observer) => {
    observer.next(1)
    observer.next(2)
    observer.next(3)
    observer.next(4)
    observer.next(5)
    observer.complete()
  }).pipe(
    filter(data => data > 2),                    //filter Operator
    map((val) => {return val as number * 2}),    //map operator
  )
 
 data = [];
 
  ngOnInit() {
    this.obs1.subscribe(
      val => {
        console.log(this.data)
      }
    )
  }
 
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: angular-observable angular-observabl

Link to this answer
Share Copy Link

Contributed on May 05 2021

Dull Deer

0 Answers Avg Quality 2/10

return observable from function angular

Comment

1. Better practise is to use Observable:

import { catchError } from 'rxjs/operators';
import { throwError } from 'rxjs';

bbb() {
 return this.http.get(this.url)
   .pipe(
     catchError(err => {
       console.log('err', err);
       return throwError('Something bad happened; please try again later.');
     });
}

2. And, then simply just subscribe to bbb:

import { Subscription } from 'rxjs';

testSubscription: Subscription;

ngAfterContentInit() {
    this.testSubscription = this.bbb()
      .subscribe(son => {
        console.log('son', son); // here you get the result
      });
}

3. Don't forget to unsubscribe:

ngOnDestroy() {
  this.testSubscription.unsubscribe();
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: angular

Link to this answer
Share Copy Link

Contributed on Jun 15 2022

Coding Era

0 Answers Avg Quality 2/10

Observable in angular

Comment

 
ngOnInit() {
 
    this.obs.subscribe(
      val => { console.log(val) }, //next callback
      error => { console.log("error") }, //error callback
      () => { console.log("Completed") } //complete callback
    )
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: www.tektutorialshub.com

Tags: angular

Link to this answer
Share Copy Link

Contributed on Apr 07 2023

Nanu

0 Answers Avg Quality 2/10

display observable property in html angular

Comment

<h3> {{(post | async)?.title}} </h3>

//OR this for multiple properties
<ng-container *ngIf="( post$ | async ) as post">
  
    <h3> {{ post.title }} </h3>
    <h3> {{ post.description }} </h3>

</ng-container>

Popularity 10/10 Helpfulness 2/10 Language html

Source: Grepper

Tags: angular

Link to this answer
Share Copy Link

Contributed on Dec 12 2022

Meti

0 Answers Avg Quality 2/10

obeservable from an object angular

Comment

//Put an object in a observable
let myObj = {name: "Maria", age: 23};
this.myObs$ = of(myObj);

Popularity 10/10 Helpfulness 2/10 Language typescript

Source: Grepper

Tags: angular

Link to this answer
Share Copy Link

Contributed on Aug 13 2021

Watcher O_O

0 Answers Avg Quality 2/10

display observable in html angular

Comment

 
<!--.html file-  use '|async' pipe -->
<ul class=""  scope="row" *ngFor="let aboutus of this.pageData |async " >             
		<li>{{aboutus.key}} {{aboutus.data.details}} </li>                               
 </ul>

Popularity 10/10 Helpfulness 1/10 Language html

Source: Grepper

Tags: angular

Link to this answer
Share Copy Link

Contributed on Apr 09 2022

Farwa Miraj

0 Answers Avg Quality 2/10

what is observable in angular

Comment

Observable in Angular is a feature that provides support 
for delivering messages between different parts of your single-page application.
This feature is frequently used in Angular because it is responsible 
for handling multiple values, asynchronous programming in Javascript, 
  and also event handling processes.

Popularity 10/10 Helpfulness 1/10 Language javascript

Source: www.javatpoint.com

Tags: angular

Link to this answer
Share Copy Link

Contributed on Jun 20 2022

Rasel Ahmed

0 Answers Avg Quality 2/10

angular observable examplE

Contents

More Related Answers

angular observable examplE

Closely Related Answers

angular observable pipe exemple

return observable from function angular

Observable in angular

display observable property in html angular

obeservable from an object angular

display observable in html angular

what is observable in angular

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.