Import
import { flatMap } from "@typed/fx/RefResult";Signatures
export declare const flatMap: {
<A, B, ResultE2>(f: (a: A) => Result.Result<B, ResultE2>): <ResultE, Err, R>(ref: RefResult<A, ResultE, Err, R>) => RefSubject.Computed<Result.Result<B, ResultE | ResultE2>, Err, R>;
<A, ResultE, Err, R, B, ResultE2>(ref: RefResult<A, ResultE, Err, R>, f: (a: A) => Result.Result<B, ResultE2>): RefSubject.Computed<Result.Result<B, ResultE | ResultE2>, Err, R>;
};Why
Projects only successful values with Result.flatMap while preserving failures; current reads
and future pushes use the same read-only derivation.
Ownership and lifetime
The flat map view retains no independent state. An Effect read samples the source once; Fx observation follows later pushes and its observing Scope owns subscription cleanup.
Other public imports
These import paths expose the same declaration. Each page retains its own public name and signature.