webpack.common.js

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

module.exports = {
  entry: {
    app: './src/main.js'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.js$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['env']
          }
        }
      },
       {
        test: /\.(png|jpg|jpeg|gif|svg|woff|woff2|ttf|eot)$/,
        loader: 'file-loader'
      }
    ]
  },
  plugins: [
    new CleanWebpackPlugin(['dist']),
    new CopyWebpackPlugin([{ from: 'public' }]),
    new HtmlWebpackPlugin({
      template: 'public/index.html'
    })
  ],
  output: {
    filename: '[name].[hash].js',
    path: path.resolve(__dirname, 'dist')
  }
};