webpack.prod.js

const { merge } = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = merge(common, {
  mode: 'production',
  output: {
    filename: 'tween-titan.production.js',
  },
  module: {
    rules: [
      {
        test: /\.(js)$/,
        exclude: /node_modules/,
        use: 'babel-loader',
      },
    ],
  },
});