variable / @typed/fx

RefOption.getOrElse

Get the value from the Option or use a fallback value.

Package version
2.0.0-beta.13
Category
Derived queries
Since
1.18.0
Member of
RefOption

Import

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

Access RefOption.getOrElse through the imported RefOption 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 getOrElse: {
    <A>(fallback: () => A): <E, R>(ref: RefOption<A, E, R>) => RefSubject.Computed<A, E, R>;
    <A, E, R>(ref: RefOption<A, E, R>, fallback: () => A): RefSubject.Computed<A, E, R>;
};

Why

Resolves None with the supplied fallback for both current reads and later pushes. The result is Computed, never absent, and does not add NoSuchElementError.

Ownership and lifetime

The get or else 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