ZIO learning - hello world first / published by https://github.com/dacr/code-examples-manager #cdd09373-998b-41e2-b3c5-b275255ee98c/fdb8bf2650420dabcaa1a837aef24e133da4628a

zio-learning-1-hello-0.sc

// summary : ZIO learning - hello world first
// keywords : scala, zio, learning, pure-functional, helloworld, @testable
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : cdd09373-998b-41e2-b3c5-b275255ee98c
// created-on : 2021-03-27T17:52:36+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "dev.zio::zio:2.0.13"
//> using dep "fr.janalyse::zio-worksheet:2.0.13.0"
// ---------------------

import zio.*, zio.ZIO.*, zio.worksheet.*

val sayHelloApp = succeed(println("Hello world!"))
// ZIO is lazy, nothing is printed at that point, sayHello just describe a computation
sayHelloApp.unsafeRun