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map / getOrElse is standard in all the Scala code I've seen. Abstracting over the monad is also a pretty big win that has made some big refactorings painless fo
by noelwelsh 13y ago
map / getOrElse is standard in all the Scala code I've seen. Abstracting over the monad is also a pretty big win that has made some big refactorings painless for me. Pattern matching is really only used by beginners IME.
- modersky 13y agoWell, then maybe the beginners do it right? You have not argued against my two points: It's much slower, and less clear.
- noelwelsh 13y agoClarity comes from familiarity. It's not an objective measure. The speed benefit is well known, as is the corollary, premature optimisation. I expect checking for null is even faster if speed is the main concern. It's an engineering tradeoff, just like making the abstraction to a monad (or monad plus). In the normal course of events I'm more concerned about flexibility than performance and would prefer the abstraction.