webpack.common.js

const path = require('path');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');

const package = require('./package.json');

module.exports = {
  entry: {
    main: './demo/src/index.js'
  },
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, 'dist/demo')
  },
  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      title: package.name
    })
  ],
  optimization: {
    runtimeChunk: 'single',
    splitChunks: {
      cacheGroups: {
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendors',
          chunks: 'all'
        }
      }
    }
  },
  module: {
    rules: [
      {
        test: /\.(js)$/,
        exclude: /(node_modules|bower_components)/,
        use: 'babel-loader'
      },
      {
        test: /\.js?$/,
        use: 'webpack-strip-log-loader'
      },

      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.(png|svg|jpg|gif)$/,
        use: ['file-loader']
      },
      { test: /\.(woff|woff2|eot|ttf|otf)$/, use: ['file-loader'] },
      {
        test: /\.(csv|tsv)$/,
        use: ['csv-loader']
      },
      {
        test: /\.xml$/,
        use: ['xml-loader']
      }
    ]
  }
};