turn array with object to array : <p>Let's say I have this:</p>

<pre><code>[ { 'one': '8b45544b-6d35c53c3d423' },
  { 'two': '5a509481-a43k4d40r4c44' } ]
</code></pre>

<p>How can I turn it into this:</p>

<pre><code>[ 'one', 'two' ]
</code></pre>
