webpack.config.js

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

const config = {
  cache: true,
  context: path.resolve(__dirname, 'src'),
  entry: {
    app: './index.jsx',
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].bundle.js',
    publicPath: "/"
  },
  resolve: {
    extensions: [
      '.js',
      '.jsx',
      '.json',
      '.coffee',
      '.sass',
      '.scss',
      '.css',
    ],
    modules: [
      path.resolve('src'),
      path.resolve('src/js'),
      path.resolve('src/sass'),
      path.resolve('src/css'),
      'node_modules',
    ],
  },
  devServer: {
    hot: true,
    contentBase: path.join(__dirname, './dist'),
    compress: true,
    historyApiFallback: true,
    port: 7000,
    stats: {
      colors: true,
      timings: true,
    },
  },
  devtool: 'source-map',
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        loader: 'babel-loader?cacheDirectory',
        exclude: /node_modules/,
      },
      {
        test: /\.json$/,
        loader: 'json-loader',
      },
      {
        test: /\.css$/,
        use: ExtractTextPlugin.extract({
          fallback: 'style-loader',
          use: 'css-loader?sourceMap',
        }),
      },
      {
        test: /\.(sass|scss)$/,
        use: [{
          loader: 'style-loader',
        }, {
          loader: 'css-loader', options: {
            sourceMap: true,
          },
        }, {
          loader: 'sass-loader', options: {
            sourceMap: true,
          },
        },],
        // use: ['style-loader', 'css-loader', 'sass-loader']
        // use: ExtractTextPlugin.extract({
        //     use: 'css-loader!sass-loader',
        // })
      },
      {
        test: /\.(ttf|eot|svg|woff(2)?)(\?[a-z0-9]+)?$/,
        loader: 'file-loader',
      },
    ],
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: JSON.stringify('development'), // eslint-disable-line quote-props
      },
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
    // new ExtractTextPlugin("css/screen.css"),
    new HtmlWebpackPlugin({
      filename: 'index.html',
      template: 'index.html',
      hash: true,
    }),
  ],
};

module.exports = config;