effect-io-ai

Package: effect
Module: Filter

Filter.andLeft

Combines two filters but only returns the result of the left filter.

Example (Keeping the left filter result)

import { Filter } from "effect"

const positiveNumbers = Filter.fromPredicate((n: number) => n > 0)
const evenNumbers = Filter.fromPredicate((n: number) => n % 2 === 0)

const positiveEven = Filter.andLeft(positiveNumbers, evenNumbers)

Signature

declare const andLeft: { <InputR, PassR, FailR>(right: Filter<InputR, PassR, FailR>): <InputL, PassL, FailL>(left: Filter<InputL, PassL, FailL>) => Filter<InputL & InputR, PassL, FailL | FailR>; <InputL, PassL, FailL, InputR, PassR, FailR>(left: Filter<InputL, PassL, FailL>, right: Filter<InputR, PassR, FailR>): Filter<InputL & InputR, PassL, FailL | FailR>; }

Source

Since v4.0.0