Naive question: what's the advantage of this compared to using 'npm init wasm-app'[1], importing your Rust WASM module from JavaScript, and iterating from there

Naive question: what's the advantage of this compared to using 'npm init wasm-app'[1], importing your Rust WASM module from JavaScript, and iterating from there? [1] - https://rustwasm.github.io/docs/book/game-of-life/hello-world.html#putting-it-into-a-web-page https://rustwasm.github.io/docs/book/game-of-life/hello-worl...