effect-io-ai

Package: effect
Module: Array

Array.map

Transforms each element using a function, returning a new array.

When to use

Use to transform each element independently while preserving the array shape.

Details

The function receives (element, index). The return type preserves NonEmptyArray.

Example (Doubling values)

import { Array } from "effect"

console.log(Array.map([1, 2, 3], (x) => x * 2)) // [2, 4, 6]

See

• flatMap — map and flatten

Signature

declare const map: { <S extends ReadonlyArray<any>, B>(f: (a: ReadonlyArray.Infer<S>, i: number) => B): (self: S) => ReadonlyArray.With<S, B>; <S extends ReadonlyArray<any>, B>(self: S, f: (a: ReadonlyArray.Infer<S>, i: number) => B): ReadonlyArray.With<S, B>; }

Source

Since v2.0.0