@loadable/babel-plugin

What is @loadable/babel-plugin?

@loadable/babel-plugin is a Babel plugin designed to work with the @loadable/component library. It helps in optimizing the code-splitting process by transforming the code to enable server-side rendering (SSR) and better client-side performance. This plugin ensures that the dynamic imports are handled efficiently, making the application load faster and more efficiently.

What are @loadable/babel-plugin's main functionalities?

Code Splitting

This feature allows you to split your code into smaller chunks which can be loaded on demand. The code sample demonstrates how to use the @loadable/component library to dynamically import a component, which will be split into a separate chunk.

import loadable from '@loadable/component';

const LoadableComponent = loadable(() => import('./MyComponent'));

function App() {
  return (
    <div>
      <LoadableComponent />
    </div>
  );
}

Server-Side Rendering (SSR) Support

This feature ensures that the dynamically imported components are correctly rendered on the server side. The code sample shows how to use the ChunkExtractor and ChunkExtractorManager from @loadable/server to collect and render chunks on the server.

import { ChunkExtractor, ChunkExtractorManager } from '@loadable/server';
import { renderToString } from 'react-dom/server';
import App from './App';

const statsFile = path.resolve('./build/loadable-stats.json');
const extractor = new ChunkExtractor({ statsFile });
const jsx = extractor.collectChunks(<App />);
const html = renderToString(
  <ChunkExtractorManager extractor={extractor}>
    {jsx}
  </ChunkExtractorManager>
);

Optimized Client-Side Performance

This feature improves client-side performance by providing a fallback component while the main component is being loaded. The code sample demonstrates how to use a fallback component to enhance the user experience during the loading phase.

import loadable from '@loadable/component';

const LoadableComponent = loadable(() => import('./MyComponent'), {
  fallback: <div>Loading...</div>,
});

function App() {
  return (
    <div>
      <LoadableComponent />
    </div>
  );
}

Other packages similar to @loadable/babel-plugin

react-loadable

react-loadable is a higher-order component for loading components with dynamic imports. It provides similar functionality to @loadable/babel-plugin but is less actively maintained. It also supports code splitting and server-side rendering but lacks some of the advanced features and optimizations provided by @loadable/babel-plugin.

react-lazy-loadable

react-lazy-loadable is another library for lazy loading React components. It offers basic code splitting and lazy loading capabilities but does not provide the same level of server-side rendering support and performance optimizations as @loadable/babel-plugin.

react-async-component

react-async-component is a library for asynchronously loading React components. It supports code splitting and lazy loading but does not offer the same comprehensive SSR support and performance enhancements as @loadable/babel-plugin.

README

@loadable/babel-plugin

This plugin is required only if you use Server Side Rendering in your application. See @loadable/server for more information.

Install

npm install --save-dev @loadable/babel-plugin

Documentation

👉 See full documentation

License

MIT

Changelog

5.16.1 (2023-07-20)

Bug Fixes

• correct babel plugin default signature to allow any source of 'loadable' (#972) (19849b6), closes #971