Ruby MRI Source Code Idioms #3: Embedded Objects - Pat Shaughnessy

Last year I wrote a post about how the core team optimized Ruby to process shorter strings faster than longer strings. I found that Ruby strings containing 23 or fewer characters are much faster. Why am I bringing this up again now? Well, it turns out this isn’t a single optimization that the core team has added for short strings. Instead, they’ve used the same technique in many other places as we

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Arrayだけじゃなくて他のオブジェクトもそうやったんか。。。