effect-io-ai

Package: effect
Module: Array

Array.intersection

Computes the intersection of two arrays using Equal.equivalence(). Order is determined by the first array.

When to use

Use when Effect equality is the right membership test and you want to keep values present in both inputs while preserving the first input’s order.

Example (Computing array intersections)

import { Array } from "effect"

console.log(Array.intersection([1, 2, 3], [3, 4, 1])) // [1, 3]

See

• intersectionWith — use custom equality
• union — elements in either array
• difference — elements only in the first array

Signature

declare const intersection: { <B>(that: Iterable<B>): <A>(self: Iterable<A>) => Array<A & B>; <A, B>(self: Iterable<A>, that: Iterable<B>): Array<A & B>; }

Source

Since v2.0.0