More WebAssembly in your JavaScript
summary
Shows concrete wins and what's usable now: ECMAScript module integration is shipping in webpack loaders so C or .wasm files import like normal modules with hot reload; reference types (phase 3) let WebAssembly hold and pass opaque DOM/JS references; interface types (phase 1) promise automatic string and object conversions instead of manual memory hacks; BigInt support for i64 is implemented in V8 and is landing in Firefox, so 64‑bit integers marshal cleanly between JS and Wasm.
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