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We rewrote our Rust WASM parser in TypeScript and it got faster
A team rewrote their Rust WASM parser in TypeScript and achieved a surprising 15% performance boost, scoring 135 points and upending conventional wisdom. This counterintuitive result proves that language choice alone doesn’t guarantee speed—optimization tailored to the runtime can outperform the typical low-level approach. Compared to OpenCode’s dominance in AI coding, this story illustrates a niche but powerful lesson: sometimes the right tool is the one you deeply optimize, not the one with inherent prestige.
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