\n\nNote:
\n\n
React.addonsentry point is deprecated as of React v15.5. The add-ons have moved to separate modules, and some of them have been deprecated.
The React add-ons are a collection of useful utility modules for building React apps. These should be considered experimental and tend to change more often than the core.
\ncreateFragment, to create a set of externally-keyed children.The add-ons below are in the development (unminified) version of React only:
\nPerf, a performance profiling tool for finding optimization opportunities.ReactTestUtils, simple helpers for writing test cases.The add-ons below are considered legacy and their use is discouraged. They will keep working in observable future, but there is no further development.
\nPureRenderMixin. Use React.PureComponent instead.shallowCompare, a helper function that performs a shallow comparison for props and state in a component to decide if a component should update. We recommend using React.PureComponent instead.update. Use kolodny/immutability-helper instead.ReactDOMFactories, pre-configured DOM factories to make React easier to use without JSX.LinkedStateMixin has been deprecated.TransitionGroup and CSSTransitionGroup have been deprecated in favor of their drop-in replacements.You can install the add-ons individually from npm (e.g. npm install react-addons-create-fragment) and import them:
import createFragment from 'react-addons-create-fragment'; // ES6\nvar createFragment = require('react-addons-create-fragment'); // ES5 with npmWhen using React 15 or earlier from a CDN, you can use react-with-addons.js instead of react.js:
<script src=\"https://unpkg.com/react@15/dist/react-with-addons.js\"></script>The add-ons will be available via the React.addons global (e.g. React.addons.TestUtils).