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What is the difference between forkJoin, zip, combineLatest, and withLatestFrom?

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01

Understand the problem

Compare RxJS combination operators.

rxjsoperators
02

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03

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04

Read the code

Merger operations in action
import { forkJoin, combineLatest, of, timer } from 'rxjs';
import { map } from 'rxjs/operators';

const requestA = of('ConfigLoaded');
const requestB = timer(1000).pipe(map(() => 'UserProfileLoaded'));

forkJoin([requestA, requestB]).subscribe(val => console.log('forkJoin:', val));
combineLatest([requestA, requestB]).subscribe(val => console.log('combineLatest:', val));
05

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