The TypeScript compiler, written in TypeScript, then Go, now Rust. tsrs is up to 8x faster than the Go version, and it doesn't drag a GC into wasm. https://blog.cloudflare.com/typescript-rust-port
Cloudflare BlogIntroducing tsrs: a Port of TypeScript to RustCloudflare is collaborating on tsrs, a Rust port of TypeScript that is up to 8x faster and uses 70% less memory.
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