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by byroot
2098 days ago
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Your Ruby snippet is slower for two reasons: - IO.foreach is lazy, but then you call `Array#grep` on it which allocate a huge Array
- `grep` populate the "last_match" object, `String#match?` is much faster.
Try rifraf's snippet: https://news.ycombinator.com/item?id=24597067, it should be as fast as Python. |
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