WebAssembly

WebAssembly (Wasm) is a low-level binary format that runs in the browser at near-native speed. You don't usually write it by hand: languages like Rust, C++ or Go compile to Wasm to bring heavy tasks (games, editing, AI) to the browser.

• Creado por W3C (consorcio)
• Año 2017
• Paradigma: Low-level · compiled
• Extensiones: .wasm, .wat

Para qué se usa

• High-performance web apps
• In-browser games
• Porting native code to the web

A favor

• Near-native speed
• Target of many languages
• Safe and portable

En contra

• Not hand-written
• Still evolving
• Indirect DOM access

Ecosistema

• Emscripten
• wasm-pack
• WASI
• wasmtime
• wat2wasm

Ejemplo

(module
  (func (export "main") (result i32)
    i32.const 42))