webpack.config.js

const path = require('path');
const VueLoaderPlugin = require('vue-loader/lib/plugin');

module.exports = {
  entry: path.resolve(__dirname, './src/index.js'),
  output: {
    path: path.resolve(__dirname, 'dist'),
    publicPath: '/dist/',
    filename: 'bundle.js',
  },
  devServer: {
    inline: true,
  },
  resolve: {
    extensions: ['.js', '.vue', '.json'],
    alias: {
      'vue$': 'vue/dist/vue.common.js',
    }
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /(node_modules)/,
        loader: 'babel-loader',
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            css: 'vue-style-loader!css-loader',
            scss: 'vue-style-loader!css-loader!sass-loader',
          },
        },
      },
      {
        test: /\.css$/,
        use: [
          'vue-style-loader',
          'css-loader',
        ]
      },
      {
        test: /\.scss$/,
        use: [
          'vue-style-loader',
          'css-loader',
          'sass-loader',
        ]
      }
    ],
  },
  plugins: [
    new VueLoaderPlugin(),
  ],
};