is_err
Reactive Result::is_err().
Usage
use leptos::*;
use leptos_use::is_err;
#[component]
fn Demo() -> impl IntoView {
let (example, set_example) = create_signal(
if js_sys::Math::random() < 0.5 { Ok("Example") } else { Err(()) }
);
let is_error = is_err(example);
view! { }
}