react-refresh-webpack-plugin

React Refresh Webpack Plugin

An EXPERIMENTAL Webpack plugin to enable "Fast Refresh" (also previously known as Hot Reloading) for React components.

Installation

First - this plugin is not 100% stable. It works pretty reliably, and we have been testing it for some time, but there are still edge cases yet to be discovered. Please DO NOT use it if you cannot afford to face breaking changes in the future.

# if you prefer npm
npm install -D react-refresh-webpack-plugin react-refresh

# if you prefer yarn
yarn add -D react-refresh-webpack-plugin react-refresh

Usage

First, apply the plugin in your Webpack configuration as follows:

webpack.config.js

const ReactRefreshWebpackPlugin = require('react-refresh-webpack-plugin');
// ... your other imports

module.exports = {
  // ... other configurations
  plugins: [
    // ... other plugins
    new ReactRefreshWebpackPlugin(),
  ],
};

Then, update your Babel configuration. This can either be done in your Webpack config (via options of babel-loader), or in the form of a .babelrc/babel.config.js.

webpack.config.js (if you choose to inline the config)

module.exports = {
  module: {
    rules: [
      // ... other rules
      {
        // for TypeScript, change the following to "\.[jt]sx?"
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: [
          // ... other loaders
          {
            loader: require.resolve('babel-loader'),
            options: {
              // ... other options
              // DO NOT apply the plugin in production mode!
              plugins: [require.resolve('react-refresh/babel')],
            },
          },
        ],
      },
    ],
  },
};

.babelrc (if you choose to extract the config)

{
  plugins: ['react-refresh/babel'],
}

Options

This plugin accepts a few options that are specifically targeted for advanced users. The allowed values are as follows:

Name	Type	Default	Description
disableRefreshCheck	boolean	false	Disables detection of react-refresh's Babel plugin. Useful if you have a Babel setup that is not entirely controlled by Webpack.
forceEnable	boolean	false	Enables the plugin forcefully. Useful if you want to use the plugin in production, for example.

Related Work

• Initial Implementation by @maisano