41 lines
1.7 KiB
TypeScript
41 lines
1.7 KiB
TypeScript
import { signal, computed, batch, effect, Signal, type ReadonlySignal } from "@preact/signals-core";
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export { signal, computed, batch, effect, Signal, type ReadonlySignal };
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export declare function useSignal<T>(value: T): Signal<T>;
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export declare function useComputed<T>(compute: () => T): ReadonlySignal<T>;
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export declare function useSignalEffect(cb: () => void | (() => void)): void;
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/**
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* @todo Determine which Reactive implementation we'll be using.
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* @internal
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*/
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/**
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* @internal
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* Update a Reactive's using the properties of an object or other Reactive.
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* Also works for Signals.
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* @example
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* // Update a Reactive with Object.assign()-like syntax:
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* const r = reactive({ name: "Alice" });
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* update(r, { name: "Bob" });
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* update(r, { age: 42 }); // property 'age' does not exist in type '{ name?: string }'
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* update(r, 2); // '2' has no properties in common with '{ name?: string }'
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* console.log(r.name.value); // "Bob"
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*
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* @example
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* // Update a Reactive with the properties of another Reactive:
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* const A = reactive({ name: "Alice" });
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* const B = reactive({ name: "Bob", age: 42 });
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* update(A, B);
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* console.log(`${A.name} is ${A.age}`); // "Bob is 42"
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*
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* @example
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* // Update a signal with assign()-like syntax:
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* const s = signal(42);
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* update(s, "hi"); // Argument type 'string' not assignable to type 'number'
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* update(s, {}); // Argument type '{}' not assignable to type 'number'
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* update(s, 43);
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* console.log(s.value); // 43
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*
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* @param obj The Reactive or Signal to be updated
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* @param update The value, Signal, object or Reactive to update `obj` to match
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* @param overwrite If `true`, any properties `obj` missing from `update` are set to `undefined`
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*/
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