title: Iterating through unsequenced object in angular 9
body: <p><a href="https://i.stack.imgur.com/MNqQ0.png" rel="nofollow noreferrer">Object structure</a> I want to iterate through one complex object where, I want all values in ngbtypeahead, before that I'm not able to get those values from this complex object just because keys are different.</p>
  <pre><code>***&gt; Special Tests: {
                         244: &quot;Immunohistochemistry (IHC)&quot;, 
                         245: &quot;Flowcytometry&quot;, 
                         246: &quot;PET scan&quot;
                       }
       TUMOUR MARKERS: {
                         24: &quot;CEA&quot;,  
                         25: &quot;PSA&quot;, 
                         26: &quot;AFP&quot;,  
                         27: &quot;CA 125&quot;
                       } ***
  </code></pre>