use leptos::*; crate::use_derive_signal!( /// Reactive `Result::is_ok()`. /// /// ## Usage /// /// ``` /// # use leptos::*; /// # use leptos_use::is_ok; /// # /// # #[component] /// # fn Demo() -> impl IntoView { /// let (example, set_example) = create_signal( /// if js_sys::Math::random() < 0.5 { Ok("Example") } else { Err(()) } /// ); /// /// let is_ok = is_ok(example); /// # /// # view! { } /// # } /// ``` is_ok, T: 'static> -> bool |value| value.is_ok() );