webpack.dev.js

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

module.exports = {
  mode: 'development',
  devtool: 'source-map',
  entry: './src/index.js',
  watch: true,
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'index.bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.(sa|sc|c)ss$/,
        use: [
          'style-loader',
          {loader: 'css-loader', options: {sourceMap: true, importLoaders: 1}},
          {loader: 'postcss-loader', options: {sourceMap: true}},
          {loader: 'sass-loader', options: {sourceMap: true}},
        ],
      },


      {
        test: /\.js$/,
        exclude: /(node_modules)/,
        use: {
          loader: 'babel-loader'
        }
      },

      {
        test: /\.(woff(2)?|ttf|eot|svg)(\?v=\d+\.\d+\.\d+)?$/,
        use: [{
          loader: 'file-loader',
          options: {
            name: 'fonts/[name].[ext]'
          }
        }]
      },

      {
        loader: 'file-loader',
        options: {
          name: '[path][name].[ext]',
        },
        test: /\.(jpe?g|png|gif)$/i,
      },
    ],
  },
}