I just finished reading this great article about Play / Scala and async.
http://engineering.linkedin.com/play/play-framework-async-io-without-thread-pool-and-callback-hell
For most of the applications I build, I don't need the sort of performance that requires a async framework. And from what I've seen of node.js, I'm not going to mess with it unless I need something that fast.
But the things in that article are pretty. Those comprehensions are nice.
As much as I love Ruby, there are a few things that it doesn't do well. It is designed for code writing speed, not execution speed. And it does lack some of the safety features of a compiled language.
After I finish with Twitarr, it'll be time to start messing with some Scala. And probably Play. Looks like fun.
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