JavaScript Environment Requirements - [ React中文开发手册 ] - 在线原生手册

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Reference Reference: Component Reference: React Advanced Guides Quick Start DOM Elements Glossary of React Terms JavaScript Environment Requirements props React Top-Level API React.Component ReactDOM ReactDOMServer Shallow Renderer state SyntheticEvent Test Renderer Test Utilities Component React API Accessibility Context Error Boundaries Higher-Order Components Integrating with Other Libraries JSX In Depth Optimizing Performance Portals React Without ES6 React Without JSX Reconciliation Refs and the DOM Static Type Checking Typechecking With PropTypes Uncontrolled Components Web Components Components and Props Composition vs Inheritance Conditional Rendering Forms Handling Events Installation Introducing JSX Lifting State Up Lists and Keys Rendering Elements State and Lifecycle Thinking in React

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反应16取决于集合类型Map和Set。如果您支持旧版浏览器和尚未提供这些内容的设备（例如IE <11），请考虑在您的捆绑应用程序中包含全局填充，例如core-js或babel-polyfill。

React 16使用core-js支持旧版浏览器的多填充环境可能如下所示：

import 'core-js/es6/map';import 'core-js/es6/set';import React from 'react';import ReactDOM from 'react-dom';ReactDOM.render(  <h1>Hello, world!</h1>,
  document.getElementById('root'));

React也依赖于requestAnimationFrame（即使在测试环境中）。

您可以使用raf软件包来填充requestAnimationFrame：

import 'raf/polyfill';

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