effect-io-ai

Package: effect
Module: Predicate

Predicate.every

Takes an iterable of predicates and returns a new predicate. The new predicate returns true if all predicates in the collection return true for a given value.

This is like Array.prototype.every but for a collection of predicates.

Example

import * as assert from "node:assert"
import { Predicate } from "effect"

const isPositive = (n: number) => n > 0
const isEven = (n: number) => n % 2 === 0

const isPositiveAndEven = Predicate.every([isPositive, isEven])

assert.strictEqual(isPositiveAndEven(4), true)
assert.strictEqual(isPositiveAndEven(3), false)
assert.strictEqual(isPositiveAndEven(-2), false)

See

• some

Signature

declare const every: <A>(collection: Iterable<Predicate<A>>) => Predicate<A>

Source

Since v2.0.0