WebAssembly basics

Summary

A binary instruction format that lets languages like C++, Rust and Go run in the browser at near-native speed — used for performance-critical tasks JS isn't well suited for.

• 1Run a simple pre-built Wasm demo in the browser and inspect the network payload.
• 2Learn typical use cases: video/image processing, games, cryptography, CAD tools.
• 3Understand Wasm complements JS for hot paths — it doesn't replace it for typical UI work.