title: how build the webpack.config.prod.js?
body: <p>I use React.js, Windows in my webpage project and want to apply the settings of webpack.config.prod.js to the project.
  So I used command below at Webstorm terminal.</p>
  
  <pre><code>set NODE_ENV=production
  .\node_modules\.bin\webpack --config webpack.config.prod.js
  yarn build
  serve -p 3000 -s build
  </code></pre>
  
  <p>This below is part of package.json</p>
  
  <pre><code>  "scripts": {
      "start": "cross-env NODE_PATH=src node scripts/start.js",
      "build": "node scripts/build.js",
      "test": "node scripts/test.js --env=jsdom",
      "development": "cross-env NODE_PATH=src node scripts/start.js"
    },
  </code></pre>
  
  <p>Is it correct command to apply the webpack.config.prod.js to my create-react-app? I don't know how to check that the configuration of webpack.config.prod.js has been applied.</p>
  
  <p>I also wonder if I need webpack-dev-server to apply webpack.config.prod.js.
  Any help will be thankful. Thanks for reading.</p>