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Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS (github.com/dawsonhuang0)
16 points by dawson0 5 months ago | hide | past | favorite | 4 comments
I ported Markus Kuhn’s wcwidth to TypeScript and optimized it with bitset lookups for O(1) performance. It now covers the full Unicode 15.1 combining ranges.

GitHub: https://github.com/dawsonhuang0/Wcwidth-O1 NPM: https://www.npmjs.com/package/wcwidth-o1

Feedback welcome!



I was about to say you could figure this kind of thing out with Intl.Segmenter but then saw it was a different problem. Nice.


Now you just have to update it to the just-released Unicode 17.


Thanks for pointing it out! The latest version is now based on Unicode 17.0.0.


Nice




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