title: TypeError: Firebase is not a function
body: <p>I am trying to follow the firebase Node tutorial:
  <a href="https://www.firebase.com/docs/web/quickstart.html">https://www.firebase.com/docs/web/quickstart.html</a></p>
  
  <p>My node.js app is crashing with a "TypeError: Firebase is not a function" error. My index.js file:</p>
  
  <pre><code>var Firebase = require("firebase");
  var firebaseRef = new Firebase("https://word-word-number.firebaseio.com/");
  </code></pre>
  
  <p>Line two is where the crash happens.</p>
  
  <p>In my package.json I have:</p>
  
  <pre><code>"firebase": "^3.0.2",
  </code></pre>
  
  <p>and </p>
  
  <pre><code>"node": "5.11.0"
  </code></pre>