title: Multidimensional array - how to get a value
body: <p>I have the following very massive array:</p>
  
  <pre><code>var arrayBig = {"count":31,"items":{"76":{"title":"office1","address":"&lt;p&gt;&lt;strong&gt;London&lt;\/strong&gt;&lt;\/p&gt;\r\n&lt;p&gt;Baker Str.&lt;\/p&gt;\r\n&lt;p&gt;Web site: &lt;a href=\"http:\/\/example.org\"&gt;http:\/\/example.org&lt;\/a&gt;&lt;\/p&gt;"},"57":{"title":....... etc. }....
  </code></pre>
  
  <p>And all I need is to get the first number in 'items', e.g. 76, with jQuery.</p>