const webpack = require('webpack'); const {resolve} = require('path'); const config = require('./config'); module.exports = Object.assign(config, { mode: 'development', entry: ['webpack-hot-middleware/client', './src/main'], devServer: { port: 3000, progress: true, contentBase: [resolve(__dirname, '../src/static'), resolve(__dirname, '../../')] }, devtool: 'cheap-source-maps', plugins: config.plugins.concat([new webpack.HotModuleReplacementPlugin()]) });