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armanozak/rxjs-7_filter_Boolean.ts

Created May 3, 2021 08:47
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[What's New in RxJS 7] Better types with filter(Boolean) #blog #rxjs
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rxjs-7_filter_Boolean.ts
import { of } from "rxjs";
import { filter } from "rxjs/operators";
// Observable<"" | 0 | null | undefined | Date>
of("" as const, 0 as const, null, undefined, new Date())
.pipe(filter(Boolean))
.subscribe();
// Observable<Date> (in RxJS 6 → Observable<unknown>)
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