effect-io-ai

Package: effect
Module: Chunk

Chunk.containsWith

Returns a function that checks if a Chunk contains a given value using a provided isEquivalent function.

Example (Checking membership with custom equivalence)

import { Chunk } from "effect"

const chunk = Chunk.make({ id: 1, name: "Alice" }, { id: 2, name: "Bob" })

// Custom equivalence by id
const containsById = Chunk.containsWith<{ id: number; name: string }>((a, b) =>
  a.id === b.id
)
console.log(containsById(chunk, { id: 1, name: "Different" })) // true
console.log(containsById(chunk, { id: 3, name: "Charlie" })) // false

// Case-insensitive string comparison
const words = Chunk.make("Apple", "Banana", "Cherry")
const containsCaseInsensitive = Chunk.containsWith<string>((a, b) =>
  a.toLowerCase() === b.toLowerCase()
)
console.log(containsCaseInsensitive(words, "apple")) // true
console.log(containsCaseInsensitive(words, "grape")) // false

Signature

declare const containsWith: <A>(isEquivalent: (self: A, that: A) => boolean) => { (a: A): (self: Chunk<A>) => boolean; (self: Chunk<A>, a: A): boolean; }

Source

Since v2.0.0