Zig‑based JS/TS parser Yuku shaves 90% of allocation overhead, runs up to 10× faster
Yuku, a JavaScript/TypeScript parser written in Zig, outpaces npm alternatives by 3–10×. It achieves this by storing the AST as flat u32 index arrays instead of pointer‑rich trees, slashing per‑node allocations and cache misses. The result is a practical showcase of data‑oriented design for high‑performance language tooling.