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Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS

4 dawson0 0 9/13/2025, 2:53:43 AM github.com ↗

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!

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