Module | Web Assembly

• Module | Web Assembly

(module
  ;; Exported function to add two numbers
  (func $add (param $a i32) (param $b i32) (result i32)
    ;; Add the two parameters and return the result
    (i32.add
      (get_local $a)
      (get_local $b)
    )
  )
  ;; Export the function so it can be called from JavaScript
  (export "add" (func $add))
)

Transformando de wat para wasm

• wat2wasm module.wat -o module.wasm

Usando no javascript

// Load the WebAssembly module
fetch('module.wasm')
  .then(response => response.arrayBuffer())
  .then(bytes => WebAssembly.instantiate(bytes))
  .then(results => {
    // Get the exported function
    const add = results.instance.exports.add;
    
    // Call the function
    console.log(add(2, 3)); // Output: 5
  });