Scala Implicit Timer

Timer.scala

implicit class Timer[T](f: => T) {
  def timems = {
    val before = System.currentTimeMillis
    val result = f
    val end = System.currentTimeMillis
    println(s"Operation elapsed time = ${end - before} ms >>> Result = $result")
  }
  def timens = {
    val before = System.nanoTime
    val result = f
    val end = System.nanoTime
    println(s"Operation elapsed time = ${(end - before) / 1e6} ms >>> Result = $result") 
  }
}