webpack-demo.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { VueLoaderPlugin } = require('vue-loader');
const webpack = require('webpack');

module.exports = {
  entry: path.join(__dirname, 'examples/src/index.js'),
  output: {
    path: path.join(__dirname, 'examples/dist'),
    filename: 'bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          compilerOptions: {
            compatConfig: {
              MODE: 2
            }
          }
        }
      },
      {
        test: /\.js$/,
        loader: 'babel-loader'
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      }
    ]
  },
  devServer: {
    open: true,
    hot: true
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './examples/src/index.html'
    }),
    new VueLoaderPlugin(),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.DefinePlugin({
      __VUE_OPTIONS_API__: true,
      __VUE_PROD_DEVTOOLS__: false,
    }),
  ],
  resolve: {
    extensions: ['.js', '.vue'],
  }
};