effect-io-ai

Package: effect
Module: Predicate

Predicate.isNotNull

A refinement that checks if a value is not null.

Example

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

assert.strictEqual(isNotNull(undefined), true)
assert.strictEqual(isNotNull("value"), true)

assert.strictEqual(isNotNull(null), false)

Signature

declare const isNotNull: <A>(input: A) => input is Exclude<A, null>

Source

Since v2.0.0