title: How do I require a module using node from the command line?
body: <p>I'm using Mac OSX. I've installed node via Homebrew. I've installed my library (<a href="http://momentjs.com/" rel="noreferrer">MomentJS</a>) via <code>npm install -g moment</code>.</p>
  
  <p>When I type <code>node</code> in the command line, I get the NodeJS console, it looks like:</p>
  
  <blockquote>
    <p>></p>
  </blockquote>
  
  <p>Now, let's say I want to use the <code>moment</code> library. If I type:</p>
  
  <pre><code>var moment = require('moment');
  </code></pre>
  
  <p>I get the following error:</p>
  
  <blockquote>
    <p>Error: Cannot find module 'moment'</p>
  </blockquote>
  
  <p>How might I configure and <code>require</code> an external library using Node from the command line?</p>