why

  • 交互式UI-简单
  • 组件化
  • 跨平台

history - feature

https://github.com/facebook/react/releases

  • v16.0 - 2017.09 
    1
    重写Reconciler - 性能，Fiber - 性能 ，createPortal API - 让节点渲染到指定容器内，更好实现弹窗功能 ，componentDidCatch -> 划分了错误边界，捕获渲染中的异常
  • v16.2
    1
    2
    3
    4
    React
    Add Fragment as named export to React. (@clemmy in #10783) -> 解决数组元素问题
    Support experimental Call/Return types in React.Children utilities. (@MatteoVH in #11422)

  • v16.3
    1
    2
    3
    4
    5
    6
    7
    React
    Add a new officially supported context API. (@acdlite in #11818)
    Add a new React.createRef() API as an ergonomic alternative to callback refs. (@trueadm in #12162)
    Add a new React.forwardRef() API to let components forward their refs to a child. (@bvaughn in #12346)
    Fix a false positive warning in IE11 when using React.Fragment. (@XaveScor in #11823)
    Replace React.unstable_AsyncComponent with React.unstable_AsyncMode. (@acdlite in #12117)
    Improve the error message when calling setState() on an unmounted component. (@sophiebits in #12347)
  • v16.6
    1
    2
    3
    4
    5
    6
    7
    8
    9
    React
    Add React.memo() as an alternative to PureComponent for functions. (@acdlite in #13748) - 控制子组件的渲染
    Add React.lazy() for code splitting components. (@acdlite in #13885) - 代码分割
    React.StrictMode now warns about legacy context API. (@bvaughn in #13760)
    React.StrictMode now warns about findDOMNode. (@sebmarkbage in #13841)
    Rename unstable_AsyncMode to unstable_ConcurrentMode. (@trueadm in #13732)
    Rename unstable_Placeholder to Suspense, and delayMs to maxDuration. (@gaearon in #13799 and @sebmarkbage in #13922)
    React DOM
    Add contextType as a more ergonomic way to subscribe to context from a class. (@bvaughn in #13728) - 方便类组件使用context
  • v16.8 - Add Hooks — a way to use state and other React features without writing a class. (@acdlite et al. in #13968) - 使函数组件也能做类组件做的一切事儿
  • v17 - 2020.10 - 事件绑定（document -> container ）, 移除事件池
    https://reactjs.org/blog/2020/10/20/react-v17.html

react-scripts

better-scroll

react-lazyload

react-transition-group

@emotion/react

Emotion is a library designed for writing css styles with JavaScript. It provides powerful and predictable style composition in addition to a great developer experience with features such as source maps, labels, and testing utilities. Both string and object styles are supported.

优化