Update for 20-11-21 16:00

lang/Node.js.wiki

@@ -17,7 +17,15 @@ is `node`.
 
 All modules are included by using the `require('MODULE')` syntax
 
-| 
+| Module | Use |
+----------------
+| HTTP         | classes, methods, etc to make Node.js server |
+| uitl         | utility functions for developers             |
+| fs           | filesystem                                   |
+| url          | parse urls                                   |
+| query string | work with the query string                   |
+| stream       | handling streaming data                      |
+| zlib         | compression                                  |
 
 == Events ==
 
@@ -82,6 +90,31 @@ readFile('./sample.txt', 'utf8', (err, txt) => {
 console.log('this is called after the fact');
   }}}
   
+== URL ==
+
+Node.js can help you parse URLs and resolve where they lead. The module is
+build into node.js. The following example code would print the hostname,
+filepath, and search string (as an object)
+
+{{{
+//import express and url
+const express = require('express');
+const url_lib = require('url');
+
+//create objects
+const app = express();
+const url = 'http://www.clortox.com/posts/';
+const parsed_url = url_lib.parse(url, true);
+
+//express listener
+app.get('/', async (request, response) =>{
+    response.send(parsed_url.path);
+});
+
+//listen
+app.listen(process.env.PORT || 3000, () => console.log('Available on localhost:3000'));
+  }}}
+  
 == Packages ==
 
 Node.js's package manager is npm. It can download packages for you to use in