Scala map sorting -

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how sort map of kind:

"01" -> list(34,12,14,23), "11" -> list(22,11,34)

by beginning values?

one way use scala.collection.immutable.treemap, sorted keys:

val t = treemap("01" -> list(34,12,14,23), "11" -> list(22,11,34))  //if  have map... val m = map("01" -> list(34,12,14,23), "11" -> list(22,11,34)) //... use val t = treemap(m.toseq:_*)

you can convert seq or list , sort it, too:

//by specifying element sorting m.toseq.sortby(_._1) //sort comparing keys m.toseq.sortby(_._2) //sort comparing values  //by providing sort function m.toseq.sortwith(_._1 < _._1) //sort comparing keys

there plenty of possibilities, each more or less convenient in context.


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