webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const WebpackMd5Hash = require('webpack-md5-hash');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = {
  entry: { main: './src/index.jsx' },
  output: {
    path: path.resolve(__dirname, 'build'),
    filename: '[name].[chunkhash].js',
  },
  module: {
    rules: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
        },
      },
      {
        test: /\.scss$/,
        use: ['style-loader', MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader', 'sass-loader'],
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin('build', {}),
    new MiniCssExtractPlugin({
      filename: 'style.[contenthash].css',
    }),
    new HtmlWebpackPlugin({
      inject: false,
      hash: true,
      template: './src/index.html',
      filename: 'index.html',
    }),
    new WebpackMd5Hash(),
    new CopyWebpackPlugin([
      { from: 'src/static', to: 'static' },
    ]),
  ],
  resolve: {
    extensions: ['.js', '.jsx'],
  },
};