times function in Scala. Do something a certain number of times. Uses type class to choose between Unit and value returning behaviour. Examples: times(5) { print("hi ") } => Unit hi hi hi hi hi times(2) { "a" } => Seq("a", "a")

Times.scala

package object util {
  object Times {
    trait TimesDoer[-Value, Result] {
      def times(n: Int)(f: => Value): Result
    }

    implicit object TimesUnit extends TimesDoer[Unit, Unit] {
      def times(n: Int)(f: => Unit): Unit = for (_ <- 0 until n) f
    }

    object TimesDefault extends TimesDoer[Any, Seq[Any]] {
      def times(n: Int)(f: => Any): Seq[Any] = for (_ <- 0 until n) yield f
    }
  }

  import Times._

  def times[Value, Result](n: Int)(f: => Value)(implicit timesDoer: TimesDoer[Value, Result] = TimesDefault) =
    timesDoer.times(n)(f)
}