function main(sources) {
const remove$ = componentRemove$.delay(50).startWith(0).scan((acc) => acc + 1);
const first = isolate(Component, 'first')(sources);
const second = isolate(Component, 'second')(sources);
const vdom$ = Rx.Observable.combineLatest(first.DOM, second.DOM, remove$,
(vdom1, vdom2, r) => {
if (r === 0) {
return div([vdom1, vdom2]);
} else if (r === 1) {
return div([vdom2]);
} else if (r === 2) {
return div([]);
} else {
done('This case must not happen.');
}
}
);
return { DOM: vdom$ };
}