Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS
Hacker News (score: 13)
Found: September 13, 2025
ID: 1371
Description
Code Quality
Show HN: wcwidth-o1 – Find Unicode text cell width in no time for JavaScript/TS
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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