effect-io-ai

Package: effect
Module: Either

Either.isRight

Determine if a Either is a Right.

Example

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

assert.deepStrictEqual(Either.isRight(Either.right(1)), true)
assert.deepStrictEqual(Either.isRight(Either.left("a")), false)

Signature

declare const isRight: <A, E>(self: Either<A, E>) => self is Right<E, A>

Source

Since v2.0.0