effect-io-ai

Package: effect
Module: Array

Array.insertAt

Inserts an element at the specified index safely, returning a new NonEmptyArray wrapped in an Option.

When to use

Use to insert a single element at a specific position in an array.

Details

Valid indices are 0 to length, inclusive. Inserting at length appends.

Example (Inserting at an index)

import { Array } from "effect"

console.log(Array.insertAt(["a", "b", "c", "e"], 3, "d")) // Option.some(["a", "b", "c", "d", "e"])

See

• replace — replace an existing element
• modify — transform an element at an index

Signature

declare const insertAt: { <B>(i: number, b: B): <A>(self: Iterable<A>) => Option.Option<NonEmptyArray<A | B>>; <A, B>(self: Iterable<A>, i: number, b: B): Option.Option<NonEmptyArray<A | B>>; }

Source

Since v2.0.0