webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

const DEV_MODE = process.env.NODE_ENV !== 'production';

module.exports = {
  context: path.resolve(__dirname, 'src'),
  entry: './js/index.js',
  devServer: {
    overlay: true,
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',
  },
  module: {
    rules: [
      {
        test: /\.(sa|sc|c)ss$/,
        // loaders: [ 'style-loader', 'css-loader', 'resolve-url-loader','sass-loader?sourceMap' ],
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: { hmr: process.env.NODE_ENV === 'development' },
          },
          'css-loader',
          'postcss-loader',
          'sass-loader',
        ],
      },
      {
        test: /\.(png|jpg|gif|jpeg)$/,
        use: [
          {
            loader: 'file-loader',
            options: {},
          },
        ],
      },
      {
        test: /\.js$/,
        exclude: /(node_modules|bower_components)/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['env'],
          },
        },
      },
      {
        test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
        use: [
          {
            loader: 'file-loader',
            options: {
              name: '[name].[ext]',
              outputPath: './fonts/',
            },
          },
        ],
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'index.css',
    }),
    new webpack.HotModuleReplacementPlugin(),
  ],
};