webpack.config.js

gistfile1.txt

const path = require('path');
const ExtractTextPlugin = require("extract-text-webpack-plugin");

const extractSass = new ExtractTextPlugin({
    filename: "[name].[contenthash].css",
    disable: process.env.NODE_ENV === "development"
});

module.exports = {
  entry: './src/js/app.js',
  devtool: 'source-map',
 // mode: 'production',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'public'),
  },
  devServer: {
    contentBase: path.join(__dirname, 'public'),
    compress: true,
    port: 9000,
  },
  module: {
    rules: [

      {
        enforce: 'pre',
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        loader: 'eslint-loader'
      },
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
        options: {
          presets: ['es2015', 'react'],
        },
      },
      {
        test: /\.scss$/,
        use: extractSass.extract({
          use: [{
              loader: "css-loader"
          }, {
              loader: "sass-loader"
          }],
          // use style-loader in development
          fallback: "style-loader"
        })
      }
    ],
  },
  plugins: [
    extractSass
  ]
};