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klaeufer/gist:867abb57dddc1b247b52

Last active August 29, 2015 14:17
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Scala Iterator loop idiom (stateless): repeatedly apply an endofunction until a condition is met
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gistfile1.txt
scala> def f(i: Int) = i * i
f: (i: Int)Int
scala> Iterator.iterate(2)(f)
res11: Iterator[Int] = non-empty iterator
scala> res11 takeWhile { _ < 10 } foreach { println }
2
4
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