webpack.dev.config.js

const path = require('path');
const webpack = require('webpack');
const HtmlWebPackPlugin = require('html-webpack-plugin');

module.exports = {
  entry: {
    main: [
      'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=20000&reload=true',
      './src/index.js'
    ]
  },
  output: {
    path: path.join(__dirname, 'dist'),
    publicPath: '/',
    filename: '[name].js'
  },
  mode: 'development',
  target: 'web',
  devtool: '#source-map',
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader'
      },
      {
        test: /\.html$/,
        include: /client/,
        use: [
          {
            loader: 'html-loader'
          }
        ]
      },
      {
        test: /\.scss$/,
        include: /client/,
        use: [
          'style-loader', // creates style nodes from JS strings
          'css-loader', // translates CSS into CommonJS
          'sass-loader' // compiles Sass to CSS, using Node Sass by default
        ]
      },
      {
        test: /\.(png|svg|jpg|gif|ico|wav)$/,
        include: /client/,
        query: {
          name: 'media/[name].[ext]'
        },
        loader: 'file-loader'
      }
    ]
  },
  plugins: [
    new HtmlWebPackPlugin({
      favicon: './src/client/img/lizard.png',
      template: './src/client/html/index.html',
      filename: './index.html',
      excludeChunks: ['server']
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NoEmitOnErrorsPlugin()
  ]
};