frontend/src/lib.rs

   1 mod utils;
   2
   3 use wasm_bindgen::prelude::*;
   4 use web_sys::console;
   5
   6 // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
   7 // allocator.
   8 #[cfg(feature = "wee_alloc")]
   9 #[global_allocator]
  10 static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
  11
  12 #[wasm_bindgen]
  13 extern {
  14     fn alert(s: &str);
  15 }
  16
  17 #[wasm_bindgen]
  18 pub fn greet(name: &str) {
  19     alert(&format!("Hello, {}!", name));
  20     console::log_1(&"Hello bg".into());
  21 }
  22
  23 #[wasm_bindgen(start)]
  24 pub fn main() -> Result<(), JsValue> {
  25     let window = web_sys::window().expect("no global `window` exists");
  26     let document = window.document().expect("should have a document on window");
  27     let body = document.body().expect("document should have a body");
  28
  29     let val = document.create_element("p")?;
  30     val.set_inner_html("Hello from Rust!");
  31
  32     body.append_child(&val)?;
  33
  34     Ok(())
  35 }