Most elegant repeat loop in Scala

Question

I\'m looking for an equivalent of:

for(_ <- 1 to n)
  some.code()

that would be shortest and most elegant. Isn\'t there in Scala anything si

Answer 1

You can create a helper method

def rep[A](n: Int)(f: => A) { if (n > 0) { f; rep(n-1)(f) } }

and use it:

rep(5) { println("hi") }

Based on @Jörgs comment I have written such a times-method:

class Rep(n: Int) {
  def times[A](f: => A) { loop(f, n) }
  private def loop[A](f: => A, n: Int) { if (n > 0) { f; loop(f, n-1) } }
}
implicit def int2Rep(i: Int): Rep = new Rep(i)

// use it with
10.times { println("hi") }

Based on @DanGordon comments, I have written such a times-method:

implicit class Rep(n: Int) {
    def times[A](f: => A) { 1 to n foreach(_ => f) } 
}

// use it with
10.times { println("hi") }