1 use wasm_bindgen::prelude::*; 2 3 #[wasm_bindgen] double(i: i32) -> i324 pub fn double(i: i32) -> i32 { 5 i * 2 6 } 7 8 #[allow(dead_code)] main()9 fn main() { 10 println!("Hello {}", double(2)); 11 } 12