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A comment on Ruby is too slow for programming competitions. Parent comment

Re:Ruby is too slow for programming competitions by up_and_up on Sunday April 21, 2013 @11:26PM (#5587602)
A really simple solution in that case is to run JRuby and then write computationally intensive code in a JVM compatible lang like Scala or Clojure. This route seems popular since you can easily give JRuby access to your Scala classes.
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Re:Ruby is too slow for programming competitions by pkolaczk on Monday April 22, 2013 @11:44AM (#5589840)
Right, but if already writing in Scala, why ever write some parts of code in Ruby? Scala gets you expressivity of Ruby with additional benefit of static typesafety.
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Re:Ruby is too slow for programming competitions by up_and_up on Tuesday April 23, 2013 @10:02AM (#5595154)
Well a pretty typical scenario is you are writing a ruby app and run into an area that needs additional horsepower (say a gaming API or something). Being on JRuby would give you more options at that point.
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