dioxus/packages/signals/examples/selector.rs

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Rust
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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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rsx! {
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button {
onclick: move |_| *signal.write() += 1,
"Increase"
}
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Child { signal: doubled }
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}
}
#[component]
fn Child(signal: ReadOnlySignal<usize>) -> Element {
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rsx! { "{signal}" }
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}