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IBM is developing a just-in-time (JIT) compiler called Testarossa based on its Open Runtime (OMR) toolkit. The goal is to integrate the JIT compiler into MRI Ruby to improve performance without changing how MRI works. So far, the JIT supports most opcodes and can run Rails applications, but performance gains are modest. IBM hopes to collaborate with the Ruby community to further optimize Ruby and
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There comes a time in the learning path for most programmers when they discover a function called map. Up until discovering the map function, you might use a for loop whenever you needed your machine to perform some action many times. In the common case, that action would be transforming some data. Imperative For example, a salesperson on your team hands you a big list of email addresses. Not a gr
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