title: Facebook api, get user liked page using FB.api
body: <p>Using this method, facebook will return an object of the user's liked pages</p>
  
  <pre><code>FB.api('/me', {fields: 'gender, first_name, last_name, email, likes'}, function(response) {
      console.log(response);
  }
  </code></pre>
  
  <p>result</p>
  
  <pre><code>email: "ariel@dropbox.com"
  first_name: "Ariel"
  gender: "female"
  id: "178006027123671"
  last_name: "Yeung"
  likes: Object data: Array[2]
  </code></pre>
  
  <p>However, I only want to get the object whether this user is liking my facebook page</p>