variable / @typed/fx

RefResult.isFailure

Check if the current state of a RefResult is Failure.

Package version
2.0.0-beta.7
Category
State predicates
Since
1.18.0
Member of
RefResult

Import

import { RefResult } from "@typed/fx";

Access RefResult.isFailure through the imported RefResult export. Its declaration below describes the member.

This public exposure is a re-export. Its import path is supported; declaration documentation is shared with the other public exposures below.

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.

Source