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darionyaphet/Scala Map map function to reversal key and value

Created February 13, 2017 09:46
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Scala Map map function to reversal key and value
val m = Map("k0"->"v0","k1"->"v1","k2"->"v2")
val n = m.map{case (k,v) => (v,k)}.toMap
println(n)
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