]🌶
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const toEmpty = () = filter(() => false);
switchMap((item) => merge(
of(item),
source.pipe(toEmpty())
))
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const toEmpty = () = filter(() => false);
switchMap((item) => merge(
of(item),
source.pipe(toEmpty())
))
S
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S
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switchMap((item) => new Observable((observer) {
observer.next(item);
return source.subscribe({
error: (e) => observer.error(e),
complete: () => observer.complete();
});
}));