unzip (Functional Programming)

Creates a function that regroups zipped arrays by position. Use it with pipe.

typescript

const result = pipe(array, unzip());

::: info

Prefer the original es-toolkit unzip in ordinary code. Use this fp variant when composing transformations with pipe.

:::

Usage

unzip takes an array of grouped values and returns arrays that collect the values at each position.

typescript

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

pipe(
  [
    [1, 'a'],
    [2, 'b'],
  ],
  unzip()
); // => [[1, 2], ['a', 'b']]

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

((zipped: ReadonlyArray<[...T]>) => Unzip<T>): A function that maps zipped rows to arrays grouped by position.