lazy lists? easy

[juan_gandhi]

scala>val input = for {i <- 1 to 10 view; _ = println(s"--$i--")} yield i
scala> input find (5==)
--1--
--2--
--3--
--4--
--5--
res3: Option[Int] = Some(5)

That's how laziness is achieved, just add view in the right place