wasm-bindgen/examples/add/src/lib.rs

#![feature(use_extern_macros, wasm_custom_section, wasm_import_module)]

extern crate wasm_bindgen;

use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn add(a: u32, b: u32) -> u32 {
    a + b
}