webpack.config.js

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

module.exports = {
  entry: './src/index.js',

  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].bundle.js',
  },

  plugins: [
    new HtmlWebpackPlugin({
      title: 'D3js',
      template: path.resolve(__dirname, './src/template.html'),
      filename: 'index.html',
      favicon: './src/favicon.ico',
    }),
  ],

  mode: 'development',
  devtool: 'source-map',
  devServer: {
    contentBase: path.resolve(__dirname, './dist'),
    open: true,
    port: 8080,
  },
}