wasm

What I do

• Write WebAssembly modules
• Use Rust/AssemblyScript for WASM
• Integrate WASM in web apps
• Optimize performance-critical code

When to use me

When needing near-native performance in browsers.

Rust to WASM

#[no_mangle]
pub extern "C" fn add(a: i32, b: i32) -> i32 {
    a + b
}

// Load WASM
const wasm = await WebAssembly.instantiateStreaming(
  fetch('add.wasm')
);
wasm.instance.exports.add(1, 2); // 3

JavaScript WASM Loading

async function loadWasm(url) {
  const response = await fetch(url);
  const buffer = await response.arrayBuffer();
  const wasm = await WebAssembly.instantiate(buffer);
  return wasm.instance.exports;
}