effect-io-ai

Package: effect
Module: Array

Array.cartesian

Computes the cartesian product of two arrays, returning all pairs as tuples.

When to use

Use when you need every [a, b] pair from two arrays as tuples.

Details

Produces every [a, b] combination of an element from self with an element from that, so the result length is self.length * that.length.

Example (Generating all pairs from two arrays)

import { Array } from "effect"

const result = Array.cartesian([1, 2], ["a", "b"])
console.log(result) // [[1, "a"], [1, "b"], [2, "a"], [2, "b"]]

See

• cartesianWith — apply a combiner to each pair

Signature

declare const cartesian: { <B>(that: ReadonlyArray<B>): <A>(self: ReadonlyArray<A>) => Array<[A, B]>; <A, B>(self: ReadonlyArray<A>, that: ReadonlyArray<B>): Array<[A, B]>; }

Source

Since v2.0.0