dioxus/packages/signals/examples/selector.rs

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use dioxus::prelude::*;
use dioxus_signals::*;
fn main() {
dioxus_desktop::launch(App);
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}
#[component]
fn App() -> Element {
let signal = use_signal(|| 0);
let doubled = use_selector(move || signal * 2);
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render! {
button {
onclick: move |_| *signal.write() += 1,
"Increase"
}
Child {
signal: doubled
}
}
}
#[component]
fn Child(signal: ReadOnlySignal<usize>) -> Element {
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render! {
"{signal}"
}
}