title: IONIC2 - Syntax Error when ionic serve
body: <p>I don't know what I did wrong, but it says Syntax error with codes copy pasted from official ionic2 docs.</p>
  
  <p>SyntaxError: <code>D:/Manson/Arts/Ionic/IonicTodo2/app/pages/list/list.js</code>: Unexpected token (14:23) while parsing file: <code>D:\Manson\Arts\Ionic\IonicTodo2\app\pages\list\list.js</code></p>
  
  <p>For the full code click <a href="http://plnkr.co/edit/PKYtxWmDd404m5EujN3B" rel="nofollow">here</a>.</p>
  
  <pre><code>    constructor(nav: NavController) {
  </code></pre>