variable / @typed/fx

RefChunk.findLast

Find the last value satisfying a predicate.

Package version
2.0.0-beta.7
Category
Optional queries
Since
1.18.0
Member of
RefChunk

Import

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

Access RefChunk.findLast through the imported RefChunk 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 findLast: {
    <A>(predicate: (a: A) => boolean): <E, R>(ref: RefChunk<A, E, R>) => RefSubject.Filtered<A, E, R>;
    <A, E, R>(ref: RefChunk<A, E, R>, predicate: (a: A) => boolean): RefSubject.Filtered<A, E, R>;
};

Why

Models the possibly absent result of find last as Filtered state, so absence stays explicit while later source versions can make a value available.

Ownership and lifetime

The find last view retains no independent value. Its Effect read fails with NoSuchElement while absent; the observing Scope owns and finalizes its Fx subscription.

Other public imports

These import paths expose the same declaration. Each page retains its own public name and signature.

Source