webpack.dev.js

const HtmlWebPackPlugin = require('html-webpack-plugin');
const {CleanWebpackPlugin} = require('clean-webpack-plugin');

module.exports = {
  mode: 'development',
  devtool: 'source-map',
  entry: './src/client/index.js',
  target: 'node',
  output: {
    library: {
      name: 'Client',
      type: 'var'
    }
  },
  module: {
    rules: [
      {
          test: '/\.js$/',
          exclude: /node_modules/,
          loader: 'babel-loader'
      },
      {
        test: /\.scss$/,
        use: [ 'style-loader', 'css-loader', 'sass-loader' ]
      }
    ]
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: './src/client/views/index.html',
      filename: './index.html'
    }),
    new CleanWebpackPlugin({
      dry: true,
      verbose: true,
      cleanStaleWebpackAssets: true,
      protectWebpackAssets: false
    }),
  ]
}