webpack.config.js

const path = require('path')
const webpack = require('webpack')

module.exports = {
  entry: './src/index.js',
  devServer: {
    contentBase: './dist',
    publicPath: '/',
    hot: true,
    watchContentBase: true
  },
  devtool: 'inline-source-map',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'dist')
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.esm.js'
    }
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin()
  ],
  module: {
    rules: [
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          loaders: {
            scss: 'vue-style-loader!css-loader!sass-loader', // <style lang="scss">
            sass: 'vue-style-loader!css-loader!sass-loader?indentedSyntax' // <style lang="sass">
          }
        }
      },
      {
        test: /\.css$/,
        use: [
          { loader: 'style-loader' },
          { loader: 'css-loader' }
        ]
      },
      {
        test: /\.(ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/,
        loader: 'file-loader'
      }
    ]
  }
}