How does nodejs background page introduce jquery?

  node.js, question

How to introduce jquery library backstage?

<script type="text/javascript" src="/"></script>
 <script type="text/javascript" src="node_modules/jquery/dist/jquery.min.js"></script> is correct, but there is no under the folder under node_modules, so do I not know any reference rules?

After introducing to bind server, it will/ request is redirected to client’s this file is located in node _ modules/ _ modules/

Please refer to:
node_module/ => Server.prototype.attachServe
node_module/ => Server.prototype.server

In addition, jQuery is introduced at the back end. npm install jquery first, and then

var $ = require("jquery");

In general, jQuery directly introduces the page:

<script src=""></script>