pub type EventHandler = Box<dyn Fn(web_sys::Event) + Send + Sync + 'static>;
#[cfg(test)]
mod tests {
use crate::{tag::button, HtmlElement};
#[test]
fn build_button() {
let button: HtmlElement = button().on("click", |_| {}).build();
let _cb = button.callbacks().get("click");
}
}