Import
import { isFailure } from "@typed/fx/RefResult";Signatures
export declare const isFailure: <A, ResultE, Err, R>(ref: RefResult<A, ResultE, Err, R>) => RefSubject.Computed<boolean, Err, R>;Why
Exposes the Result failure discriminator as Computed state without changing or duplicating the RefResult.
Ownership and lifetime
The is failure 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.