Simplify Option creation in Scala to avoid conditions

Question

Now I create Option using if condition:

if (lastTime > 0) 
  Some(lastTime) 
else 
  None

is it possible to simplify such expression?

Answer 1

Also, you can add an extension method to Booleans:

implicit class BooleanExtension(val bool: Boolean) extends AnyVal {
  def option[T](value: T): Option[T] =
    if (bool) Some(value) else None
}

Usage: (lastTime > 0).option(lastTime)

And in case you are using the Scalaz library, it already has this extension method (option) defined.

Answer 2

Option(lastTime).filter(_ > 0)