webpack.config.js

var webpack = require('webpack')
var HtmlWebpackPlugin = require('html-webpack-plugin')
var path = require('path')
var env = process.env.NODE_ENV || 'development'
const MiniCssExtractPlugin = require('mini-css-extract-plugin')

module.exports = {
  devtool: 'source-map',
  entry: [
    './src/example/Example.js',
    'webpack-dev-server/client?http://localhost:8080',
    'webpack/hot/only-dev-server',
  ],
  output: { filename: 'bundle.js', path: path.resolve('example') },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'React-text-collapse',
    }),
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"' + env + '"',
      },
    }),
    new webpack.HotModuleReplacementPlugin(),
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: '[name].css',
      chunkFilename: '[id].css',
    }),
  ],
  module: {
    rules: [
      {
        test: /\.js$/,
        loaders: ['babel-loader'],
        include: [path.resolve('src')],
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              // you can specify a publicPath here
              // by default it use publicPath in webpackOptions.output
              publicPath: '../',
            },
          },
          'css-loader',
        ],
      },
      {
        enforce: 'pre',
        test: /\.js$/,
        loaders: ['eslint-loader'],
        include: [path.resolve('src')],
      },
    ],
  },
  resolve: { extensions: ['.js'] },
  stats: { colors: true },
  devServer: {
    hot: true,
    historyApiFallback: true,
    stats: {
      chunkModules: false,
      colors: true,
    },
  },
}