useUpdateAtom

引用: https://github.com/pmndrs/jotai/issues/26

对于较新版本的 Jotai，您也可以使用 useSetAtom 代替。

import { atom, useAtom } from "jotai";
import { useUpdateAtom } from "jotai/utils";
const countAtom = atom(0);

const Counter = () => {
  const [count] = useAtom(countAtom);
  return <div>count: {count}</div>;
};

const Controls = () => {
  const setCount = useUpdateAtom(countAtom);
  const inc = () => setCount((c) => c + 1);
  return <button onClick={inc}>+1</button>;
};