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Genrating first 20 odd numbers not Odd numbers in range 20 #6

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Update ch6-CommonCollections.asciidoc
akgeni May 19, 2017
9b86988
Generating first 20 odd numbers
akgeni May 19, 2017
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6 changes: 3 additions & 3 deletions Exercises/ch6-CommonCollections.asciidoc
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Expand Up @@ -9,14 +9,14 @@ There's many ways to generate this list with the collections library, too many t

[source,scala]
-------------------------------------------------------------------------------
scala> for (i <- 0L to 9L; j = i * 2 + 1) yield j
scala> for (i <- 0L to 19L; j = i * 2 + 1) yield j
res0: scala.collection.immutable.IndexedSeq[Long] = Vector(1, 3, 5, 7, 9,
11, 13, 15, 17, 19)

scala> 0L to 20L filter (_ % 2 == 1)
scala> 0L to 40L filter (_ % 2 == 1)
res1: scala.collection.immutable.IndexedSeq[Long] = Vector(1, 3, 5, 7, 9, 11, 13, 15, 17, 19)

scala> 0L to 9L map (_ * 2 + 1)
scala> 0L to 19L map (_ * 2 + 1)
res2: scala.collection.immutable.IndexedSeq[Long] = Vector(1, 3, 5, 7, 9, 11, 13, 15, 17, 19)
-------------------------------------------------------------------------------

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