eewing
15 lines
491 B
TypeScript
15 lines
491 B
TypeScript
import type { Box } from "../types.js";
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type WatcherCallback<T> = (curr: T, prev: T) => void | Promise<void> | (() => void) | (() => Promise<void>);
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type WatchOptions = {
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/**
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* Whether to eagerly run the watcher before the state is updated.
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*/
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immediate?: boolean;
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/**
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* Whether to run the watcher only once.
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*/
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once?: boolean;
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};
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export declare function watch<T>(box: Box<T>, callback: WatcherCallback<T>, options?: WatchOptions): () => void;
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export {};
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