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What makes Scala worth using is a good type system, pattern matching, excellent support for concurrency and powerful DSL capabilities. None of these are crazy or require you to write mind-bending code.

Tool support is outstanding with IntelliJ

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Scala has a poor type system, and poor support for concurrency. It's terrible DSL problem is not a selling point. Nothing he talked about was crazy or required writing mind-bending code, that is the point. IntelliJ's scala support is still, to this day, completely broken. Have you tried using it?

Yes, I use it daily. What are your issues with it?

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