33 lines
888 B
TypeScript

import { Observable, of } from 'rxjs';
// #docregion observer
// Create simple observable that emits three values
const myObservable = of(1, 2, 3);
// Create observer object
const myObserver = {
next: x => console.log('Observer got a next value: ' + x),
error: err => console.error('Observer got an error: ' + err),
complete: () => console.log('Observer got a complete notification'),
};
// Execute with the observer object
myObservable.subscribe(myObserver);
// Logs:
// Observer got a next value: 1
// Observer got a next value: 2
// Observer got a next value: 3
// Observer got a complete notification
// #enddocregion observer
// #docregion sub_fn
myObservable.subscribe(
x => console.log('Observer got a next value: ' + x),
err => console.error('Observer got an error: ' + err),
() => console.log('Observer got a complete notification')
);
// #enddocregion sub_fn