Is there a way to convert (wrap) a mutable Map to immutable in O(1) time (that is, not by copying the values, but simi开发者_如何学Clar to what is done in JavaConversions)As Thomas points out, the rea
Learning Scala curren开发者_运维技巧tly and needed to invert a Map to do some inverted value->key lookups.I was looking for a simple way to do this, but came up with only:
I just stumbled on one of Tony Morris\' blog-posts about Java and a fundamental problem with the language: that of defining a bespoke equality-relation for a collection. This is something that I think
Assume you have a List(1,\"1\") it is typed List[Any], which is of course correct and expected. Now if I map the list like this
I\'m evaluating Scala and am having a problem with its immutable collections. I want to make immutable collections, which are completely immutable, right down through all the contained objects, the o
This is more a question of style and preference but here goes: when should I use scala.Array? I use List all the time and occasionally run into Seq, Map and the like, but I\'ve never u开发者_C百科sed
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