webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
  entry: "./src/index.js",
  output: {
    path: path.join(__dirname, "/dist"),
    filename: 'static/js/bundle.js',
    chunkFilename: 'static/js/[name].chunk.js',
    publicPath: '/'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: ["babel-loader"]
      },
      {
        test: /\.(scss|sass|css)$/i,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader?modules&importLoaders=1&camelCase&localIdentName=[local]&-autoprefixer!postcss-loader!sass-loader'
        ]
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "public/index.html"
    }),
    new MiniCssExtractPlugin({
      filename: "styles.css"
    })
  ]
};