Effect ts

Effect<Env, Error, A>

import { Effect, succeed, fail, runPromise } from '@effect/io/Effect'

const succeedEffect = Effect.succeed("hello")
const failedEffect = Effect.fail(new Error("fail"))

runPromise(succeedEffect).then(console.log) // hello
runPromise(failedEffect).catch(console.error) // Error: fail

The truth about Effect | Ethan Niser | Blog

My personal website

https://ethanniser.dev/blog/the-truth-about-effect

Installation

Set up a new Effect project across different platforms like Node.js, Deno, Bun, and Vite + React with step-by-step installation guides.

https://effect.website/docs/quickstart