do and tap operator rxjs
const source = of(1, 2, 3, 4);
source.pipe(
tap(val => console.log('I am tap: ',val)),
filter(val => val > 2),
map(val => val + 1)).subscribe((val) => {
console.log('I am subscriber value after filtering: ', val);
});how to use tap()
content_copy
open_in_new
import { fromEvent } from 'rxjs';
import { tap, map } from 'rxjs/operators';
const clicks = fromEvent(document, 'click');
const positions = clicks.pipe(
tap(ev => console.log(ev)),
map(ev => ev.clientX),
);
positions.subscribe(x => console.log(x));Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
