variable / @typed/fx/RefArray

insertAt

Insert a value at a particular index of a RefArray.

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

Import

import { insertAt } from "@typed/fx/RefArray";

Signatures

export declare const insertAt: {
    <A>(index: number, a: A): <E, R>(ref: RefArray<A, E, R>) => Effect.Effect<ReadonlyArray<A>, E, R>;
    <A, E, R>(ref: RefArray<A, E, R>, index: number, a: A): Effect.Effect<ReadonlyArray<A>, E, R>;
};

Why

Expresses insert at as one ordered array transition; readers never observe the intermediate collection used to build the result.

Ownership and lifetime

Running insert at performs one serialized array 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