effect-io-ai

Package: effect
Module: Predicate

Predicate.isNotUndefined

A refinement that checks if a value is not undefined.

Example

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

assert.strictEqual(isNotUndefined(null), true)
assert.strictEqual(isNotUndefined("value"), true)

assert.strictEqual(isNotUndefined(undefined), false)

Signature

declare const isNotUndefined: <A>(input: A) => input is Exclude<A, undefined>

Source

Since v2.0.0