For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt, and this page is available as Markdown at /reference/fp/reverse.md.

reverse (Functional Programming) es-toolkit

Creates a function that returns a reversed copy of an array. Use it with pipe.

const result = pipe(array, reverse());
Info

This helper is specific to es-toolkit/fp. Use it when you want this operation as part of a pipe pipeline.

Usage

reverse returns a new array with the values of the piped array in reverse order. It does not mutate the input array.

import { pipe, reverse } from 'es-toolkit/fp';

const array = [1, 2, 3];

pipe(array, reverse()); // => [3, 2, 1]
array; // => [1, 2, 3]

Parameters

This function takes no arguments; call it as reverse().

Returns

A function that maps a readonly T[] to a reversed copy.

(array: readonly T[]) => T[]
Source: es-toolkit

Re-exported verbatim from es-toolkit. Implementation, edge cases, and performance behavior are owned upstream. This page mirrors the documentation at the pinned version; the linked source is authoritative.