read name of unknown properties
<p>I have a simple javascript object with several unknown properties containing a value. The problem is that i don't really know the name of the field since it is variable. How can I access this unknown property?</p>

<p>For better understanding I have a simple object like following:</p>

<pre><code>var a = { cat : "meow", dog : "woof"};
</code></pre>

<p>I need to read the name and the value of the different properties. I was thinking about something like the following: <code>a.getField(0).name</code>.</p>
