return type

:

scala

Scala's Unit roughly corresponds to which Java type?

scala

Unit

scala

Unit Example

scala

Let's assume we have the following Action in PlayFramework 2.* controller: def action = Action { request => if (true) { return BadRequest("bad") } Ok("all ok") } What will be displayed as the result of requesting the action?

scala

Best practices: MUST NOT use "return"

scala

Return Expressions

scala

Return Expr and anonymous functions

scala

What will be the result of following code execution? object Main extends App { def gcd(a: Int, b: Int) = if (b == 0) a else gcd(b, a % b) println(gcd(5, 15)) }

scala

What will be the result of following code execution? object Main extends App { def quiz = { val result = 5 + 6 } println(quiz) }

scala

What is the returned type of this function: def sayHelloRunnable(name: String) = new Runnable { def sayIt() = println(s"Hello, $name") def run() = sayIt() }