28 lines
672 B
TypeScript
28 lines
672 B
TypeScript
import { unstable_createStore, useAtom, WritableAtom } from "jotai";
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import { useLayoutEffect } from "react";
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export const jotaiScope = Symbol();
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export const jotaiStore = unstable_createStore();
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export const useAtomWithInitialValue = <
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T extends unknown,
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A extends WritableAtom<T, T>,
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>(
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atom: A,
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initialValue: T | (() => T),
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) => {
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const [value, setValue] = useAtom(atom);
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useLayoutEffect(() => {
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if (typeof initialValue === "function") {
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// @ts-ignore
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setValue(initialValue());
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} else {
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setValue(initialValue);
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}
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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return [value, setValue] as const;
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};
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