variable / @typed/fx/RefTuple

setAt

Set the value at a specific index in the current state of a RefTuple.

Package version
2.0.0-beta.13
Category
State updates
Since
1.18.0

Import

import { setAt } from "@typed/fx/RefTuple";

Signatures

export declare const setAt: {
    <T extends ReadonlyArray<unknown>, I extends number>(index: I, value: T[I]): <E, R>(ref: RefTuple<T, E, R>) => Effect.Effect<T, E, R>;
    <T extends ReadonlyArray<unknown>, I extends number, E, R>(ref: RefTuple<T, E, R>, index: I, value: T[I]): Effect.Effect<T, E, R>;
};

Why

Keeps set at atomic with respect to competing RefSubject writes instead of splitting the read and replacement into separate effects.

Ownership and lifetime

Running set at performs one serialized tuple transition and resolves with its committed value. It acquires no resource; failures and services remain those of the source ref.

Other public imports

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

Source