wasm compiles to "native" code, for whatever "native" means in your execution environment if you're deploying wasm to the browser, then native means your JS en

wasm compiles to "native" code, for whatever "native" means in your execution environment if you're deploying wasm to the browser, then native means your JS engine if you're deploying wasm to the server, then native means actual machine code the competitive advantage versus java is (at a very high level) the language design -- java is much higher-level than wasm, which limits its potential