π Step 6: Development#288 / 291
WebAssembly
WebAssembly (WASM)
πOne-line summary
A binary format that runs in the browser at near-native speed.
π‘Easy explanation
A binary format that runs in the browser at near-native speed. Lets C++/Rust code execute on the web.
β¨Example
// Rust code
fn fib(n: u32) -> u32 {...}
β wasm-pack
// Run in the browser
await wasm.fib(40)
β‘Vibe coding prompt examples
>_
Write a step-by-step guide for compiling a Rust image-conversion function to WebAssembly and using it in Next.js.
>_
Build a decision guide that compares cases where WebAssembly is a good fit vs. a poor fit.
>_
Lay out a strategy for safely loading and caching WASM modules, plus the SSR compatibility caveats.
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