精通 React 函数组件:Hooks、useEffect 和生命周期详解
原文英文,约800词,阅读约需3分钟。发表于: 。In React version 16.8, functional components became more powerful with the introduction of hooks. Functional components in React existed before version 16.8, but they did not have access to...
React 16.8 引入了 Hooks,使函数组件可以管理状态和生命周期。useState 和 useEffect 让函数组件在挂载、更新和卸载阶段处理状态和行为。useEffect 可以通过空数组在初次渲染时运行,依赖特定状态变化更新,并返回清理函数防止内存泄漏。