Improving Performance of Crystal Methods Inline in Ruby

The text discusses a project that allows writing and running Crystal methods inline inside a Ruby file. The author identifies a subtle mistake in the Ruby implementation that causes unnecessary work, leading to slower performance. By making some minor tweaks to the Ruby code, the performance is improved, and with the use of Ruby's built-in JIT compiler, it outperforms the precompiled statically typed language. The author is hopeful for future advancements in Ruby JIT eliminating the need for such tweaks.

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