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Last active February 3, 2026 20:22
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ZIO learning - hello world first / published by https://github.com/dacr/code-examples-manager #cdd09373-998b-41e2-b3c5-b275255ee98c/3d44c44c734ad0a24a1c4994db7023a7ad94b657
// summary : ZIO learning - hello world first
// keywords : scala, zio, learning, pure-functional, helloworld, @testable
// publish : gist
// authors : David Crosson
// license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
// 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
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