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cer/UsingMapFilterKeysBlowsStack.scala

Created August 14, 2015 00:03
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UsingMapFilterKeysBlowsStack.scala
val children = Set("a", "b", "c")
var knownChildren = Map[String, String]()
val newChildren = Map[String, String]()
for (i <- 1 to 1000*1000) {
if (i % 1000 == 0) println(knownChildren.size)
knownChildren = knownChildren.filterKeys(children.contains) ++ newChildren
}
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