webpack.config.js

/*
If you need Vue, add this in your dependencies:

  "vue": "^2.6.12",
  "vue-router": "^3.4.3"

And add this in devDependencies:

  "@vue/test-utils": "^1.1.0",
  "babel-jest": "^26.3.0",
  "jest": "^26.4.2",
  "puppeteer": "^5.3.1",
  "vue-jest": "^3.0.7",
  "vue-loader": "^15.9.3",
  "vue-style-loader": "^4.1.2",
  "vue-template-compiler": "^2.6.12"

Then uncomment all commented lines below
*/

// const { VueLoaderPlugin } = require('vue-loader');
const DependencyExtractionWebpackPlugin = require('@wordpress/dependency-extraction-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const BrowserSyncPlugin = require('browser-sync-webpack-plugin');
const path = require('path');

const cssPath = './assets/css';
const jsPath = './assets/js';
const shopPath = './woocommerce';
const outputPath = '_dist';

const localDomain = 'http://lab.test/';
const entryPoints = {
  app: `${jsPath}/app.js`,
  gutenberg: `${cssPath}/gutenberg.sass`,
  'my-editor': `${jsPath}/my-editor.js`,
  'my-admin': `${jsPath}/my-admin.js`,

  shop: `${shopPath}/js/shop.js`,
  'shop-editor': `${shopPath}/css/shop-editor.sass`,
  'shop-admin': `${shopPath}/css/shop-admin.sass`,
};

module.exports = {
  entry: entryPoints,
  output: {
    path: path.resolve(__dirname, outputPath),
    filename: '[name].js',
  },
  plugins: [
    // new VueLoaderPlugin(),

    new BrowserSyncPlugin({
      proxy: localDomain,
      files: [`${outputPath}/*.css`],
      injectCss: true,
    }, { reload: false }),

    new MiniCssExtractPlugin({
      filename: '[name].css',
    }),

    new DependencyExtractionWebpackPlugin({
      injectPolyfill: true,
    }),
  ],
  module: {
    rules: [
      // {
      //   test: /\.vue$/,
      //   use: 'vue-loader',
      // },
      {
        test: /\.s?[ac]ss$/i,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader',
        ],
      },
      {
        test: /\.(jpg|jpeg|png|gif|woff|woff2|eot|ttf|svg)$/i,
        use: 'url-loader?limit=1024',
      },
      {
        test: /\.jsx$/i,
        use: [
          require.resolve('thread-loader'),
          {
            loader: require.resolve('babel-loader'),
            options: {
              cacheDirectory: process.env.BABEL_CACHE_DIRECTORY || true,
              babelrc: false,
              configFile: false,
              presets: [
                require.resolve('@wordpress/babel-preset-default'),
              ],
            },
          },
        ],
      },
    ],
  },
};