useReducer 钩子详解
原文英文,约500词,阅读约需2分钟。发表于: 。The useReducer hook is a powerful React hook that is particularly useful for managing state in complex components. It offers an alternative to the useState hook, especially when dealing with state...
useReducer 是 React 中用于管理复杂组件状态的强大钩子。它通过 reducer 函数处理状态更新,比 useState 更灵活。reducer 接收当前状态和动作,返回新状态。useReducer 返回当前状态和 dispatch 函数,适合多状态变量依赖的情况,提供可预测的状态更新和集中管理。