# Fx.debounce

Emits a value only after no newer source value arrives for `duration`.

## Signatures

```ts
export declare const debounce: {
    (duration: Duration.Input): <A, E, R>(fx: Fx<A, E, R>) => Fx<A, E, R | Scope.Scope>;
    <A, E, R>(fx: Fx<A, E, R>, duration: Duration.Input): Fx<A, E, R | Scope.Scope>;
};
```

## Why

Bursty producers such as text input should often trigger work only after
they settle. Debouncing represents that quiet-period rule in the Fx graph.

## Ownership and lifetime

Each value starts a scoped sleep. A newer value interrupts the previous
sleep and replaces its pending value, so at most the latest value is emitted
after a quiet period. Source errors terminate the result. Interruption stops
both source and pending timer; `Scope` owns those switching lifetimes.

## Examples

```ts
import { debounce } from "@typed/fx/Fx"
import { fromIterable } from "@typed/fx/Fx"

const settled = debounce(fromIterable(["t", "ty", "typed"]), "250 millis")
```