webpack.config.js

const path = require('path');

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

const DIST_DIR = 'dist';

module.exports = {
  entry: './src/index.js',
  mode: 'development',
  devtool: 'inline-source-map',
  devServer: {
    contentBase: './dist',
  },
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, DIST_DIR),
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Vis',
      template: 'src/index.html',
    }),
    new CleanWebpackPlugin([DIST_DIR]),
  ],

  module: {
    rules: [
      {
        test: /\.m?js$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
          },
        },
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
      {
        test: /\.(png|svg|jpg|gif)$/,
        use: ['file-loader'],
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/,
        use: ['file-loader'],
      },
    ],
  },
};