Function leptos_use::is_none

source · 
pub fn is_none<V, T>(value: V) -> Signal<bool>
where
    V: Into<MaybeSignal<Option<T>>>,
    T: 'static,
Expand description

Reactive Option::is_none().

§Usage

let (example, set_example) = create_signal(
    if js_sys::Math::random() < 0.5 { Some("Example") } else { None }
);

let is_empty = is_none(example);