React 16.3.0 已发布, React 是 Facebook 推出的一个为数据提供渲染为 html 视图, 用来构建用户界面的开源 JavaScript 库
React 视图通常采用包含以自定义 HTML 标记规定的其他组件的组件渲染 React 为程序员提供了一种子组件不能直接影响外层组件 ("data flows down") 的模型, 数据改变时对 HTML 文档的有效更新, 和现代单页应用中组件之间干净的分离
更新内容:
- React
- Add a new officially supported context API
- Add a new React.createRef() API as an ergonomic alternative to callback refs.
- Add a new React.forwardRef() API to let components forward their refs to a child.
- Fix a false positive warning in IE11 when using React.Fragment
- Replace
- React.unstable_AsyncComponent
- with
- React.unstable_AsyncMode
- Improve the error message when calling setState() on an unmounted component.
- React DOM
- Add a new
- getDerivedStateFromProps()
- lifecycle and UNSAFE_ aliases for the legacy lifecycles.
- Add a new
- getSnapshotBeforeUpdate()
- lifecycle
- Add a new <React.StrictMode> wrapper to help prepare apps for async rendering.
- Add support for onLoad and onError events on the <link> tag
- Add support for noModule boolean attribute on the <script> tag
- Fix minor DOM input bugs in IE and Safari
- Correctly detect Ctrl + Enter in onKeyPress in more browsers
- Fix containing elements getting focused on SSR markup mismatch
- Fix value and defaultValue to ignore Symbol values
- Fix refs to class components not getting cleaned up when the attribute is removed.
- Throw with a meaningful message if the component runs after jsdom has been destroyed.
- Don't crash if there is a global variable called opera with a null value
- Don't check for old versions of Opera
- Deduplicate warning messages about <option selected>
- Deduplicate warning messages about invalid callback
- Deprecate
- ReactDOM.unstable_createPortal()
- in favor of
- ReactDOM.createPortal()
- .
- Don't emit User Timing entries for context types
- Improve the error message when context consumer child isn't a function.
- Improve the error message when adding a ref to a functional component.
- React DOM Server
- Prevent an infinite loop when attempting to render portals with SSR.
- Warn if a class doesn't extend React.Component .
- Fix an issue with this.state of different components getting mixed up.
- Provide a better message when component type is undefined.
- React Test Renderer
- Fix handling of fragments in toTree() .
- Shallow renderer should assign state to null for components that don't set it.
- Shallow renderer should filter legacy context according to contextTypes .
- Add an unstable API for testing asynchronous rendering.
- React Is (New)
- First release of the new package that libraries can use to detect different React node types.
- Add
- ReactIs.isValidElementType()
- to help higher-order components validate their inputs.
- React Lifecycles Compat (New)
- First release of the new package to help library developers target multiple versions of React.
- Create Subscription (New)
- First release of the new package to subscribe to external data sources safely for async rendering.
- React Reconciler (Experimental)
- Expose
- react-reconciler/persistent
- for building renderers that use persistent data structures.
- Pass host context to
- finalizeInitialChildren()
- .
- Remove useSyncScheduling from the host config.
- React Call Return (Experimental)
- Fix a crash on updates.
下载地址: https://github.com/facebook/react/releases/tag/v16.3.0
来源: https://www.thinksaas.cn/group/topic/839305/