JotaiJotai

状態
原始和灵活的 React 状态管理

atomWithReducer

引用: https://github.com/pmndrs/jotai/issues/38

import { atomWithReducer } from 'jotai/utils'


const countReducer = (prev, action) => {
  if (action.type === 'inc') return prev + 1
  if (action.type === 'dec') return prev - 1
  throw new Error('unknown action type')
}


const countReducerAtom = atomWithReducer(0, countReducer)
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