scala3 feature examples - optional control syntax / published by https://github.com/dacr/code-examples-manager #f6b98009-e3e5-4c8a-8c6a-7123d2ebbef6/5aa28c1c1b915b977a75494cc31f5938fea72d5

scala3-feature-optional-control-syntax.scala

// summary : scala3 feature examples - optional control syntax
// keywords : scala3, tutorial, @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 : f6b98009-e3e5-4c8a-8c6a-7123d2ebbef6
// created-on : 2021-03-25T11:22:13+01:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

//> using scala "3.4.2"

@main def go() = {
  // -------------------------------------------------------------
  if (true) println("true") else println("false")

  if true then println("true") else println("false")

  // -------------------------------------------------------------
  for (i <- 1 to 4) println(i)

  for i <- 1 to 4 do println(i)

  for
    i <- 1 to 4
  do
    println(i)

  for i <- 1 to 4 yield i+1

  // -------------------------------------------------------------
  try {
    1/0
  } catch {
    case x:Exception => println("boum")
  }

  try 1/0 catch
    case x:Exception => println("boum")

  try 1/0 catch case x:Exception => println("boum")

  // -------------------------------------------------------------
  while(false) {
    println("something")
  }

  while false do println("something")

  while false do
      println("something")
}