webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin') //installed via npm
const webpack = require('webpack') //to access built-in plugins
const path = require('path')

const config = {
  // devtool: 'inline-cheap-source-map',
  entry: './src/app.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: './bundle.js'
  },
  resolve: {
    modules: ['.', 'node_modules']
  },
  module: {
    rules: [
      { test: /\.(png|woff|woff2|eot|ttf|svg)$/, loader: 'url-loader?limit=100000' },
      {
        test: /\.js$/,
        exclude: /(node_modules)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/react'],
            plugins: ['transform-class-properties']
          }
        }
      },
      {
        test: /\.scss$/,
        use: [{
          loader: 'style-loader' // creates style nodes from JS strings
        }, {
          loader: 'css-loader' // translates CSS into CommonJS
        }, {
          loader: 'sass-loader' // compiles Sass to CSS
        }]
      }
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({ template: './src/index.html' })
  ]
}

module.exports = config