webpack.config.dev.js

'use strict'

const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const autoprefixer = require('autoprefixer');

module.exports = {
  entry: path.resolve(__dirname, 'dev/main.js'),
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.js',
  },
  target: 'web',
  mode: 'development',
  devServer: {
    contentBase: path.resolve(__dirname, 'dist'),
    compress: false,
    port: 3700,
    hot: true
  },
  resolve: {
    extensions: ['.js']
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader'
      },
      {
        test: /\.scss$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'style-loader',
            options: { hmr: true }
          },
          'css-loader',
          {
            loader: 'postcss-loader',
            options: {
              ident: 'postcss',
              plugins: () => [
                require('postcss-flexbugs-fixes'), // eslint-disable-line
                autoprefixer({
                  browsers: ['>1%', 'last 4 versions', 'Firefox ESR', 'not ie <9'],
                  flexbox: 'no-2009'
                })
              ]
            }
          },
          {
            loader: 'sass-loader',
            options: {
              includePaths: [path.resolve(__dirname,'src/scss')]
            }
          }
        ]
      },
      {
        test: /\.(jpg|png|gif|svg)$/,
        use: 'url-loader'
      }
    ]
  },
  devtool: 'eval',
  plugins: [
    new CleanWebpackPlugin(['dist']),
    new webpack.HotModuleReplacementPlugin(),
    new HtmlWebpackPlugin({
      template: './dev/index.html'
    })
  ],
  performance: {
    hints: false
  }
};