Variable ExtendedObservableConst

ExtendedObservable: any = Observable

Exports the Observable class.

Deprecated

the observable proposal is 'dead'

Example

// create observable, which ticks all 100 msec
const observable = new Observable((observer: any) => {
    let counter = 0;
    const t = setInterval(() => {
        observer.next(++counter);
    }, 100);
    // return a cleanup function, is called if subscriber unsubscribes
    return () => {
        clearInterval(t);
    };
});
// now somebody can subscribe
const subscription = observable.subscribe({
    next(value: number) {
        console.debug(value);
    }
});
// to unlink do:
subscription.unsubscribe();

Example

// use object observable definition
observable.subscribe({
    next(value) { },
    error(e) { },
    complete() { }
});

Example

// use method definition, first argument is next, second error and third complete
observable.subscribe(
    (value)=> {},
    (e)=> {},
    ()=> {}
);

See

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