react hooks

React Hooks are functions that allow you to use state and other React features without writing a class. They were introduced in React 16.8 and include useState, useEffect, useContext, and useReducer.

- useState: allows you to manage state in functional components
- useEffect: allows you to perform side effects in functional components
- useContext: allows you to consume a Context in a functional component
- useReducer: allows you to manage state in a more complex way, similar to Redux

Using React Hooks can make your code more concise and easier to read. It also eliminates the need for some of the boilerplate code associated with class components.

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React Hooks

React Hooks 是 React v16.8 引入的一项新特性，它可以让你在不编写 class 的情况下使用 state 和其他 React 特性。它使得在函数组件中编写复杂的逻辑变得更加简单和优雅。Hooks 提供了许多钩子函数，如 useState、useEffect、useContext、useReducer 等，可以帮助我们处理组件的状态、副作用、全局数据等问题。使用 Hooks 可以让你的代码更容易理解、测试和重用。