Function is_err

Source
pub fn is_err<V, T>(value: V) -> Signal<bool>
where Result<T, ()>: Send + Sync, V: Into<Signal<Result<T, ()>>>, T: 'static,
Expand description

Reactive Result::is_err().

ยงUsage

let (example, set_example) = signal(
    if js_sys::Math::random() < 0.5 { Ok("Example") } else { Err(()) }
);

let is_error = is_err(example);