pub fn is_ok<V, T>(value: V) -> Signal<bool>where V: Into<MaybeSignal<Result<T, ()>>>, T: 'static,
Reactive Result::is_ok().
Result::is_ok()
let (example, set_example) = create_signal( if js_sys::Math::random() < 0.5 { Ok("Example") } else { Err(()) } ); let is_ok = is_ok(example);