title: Nested lightning aura iteration
body: <p>I have a nested aura:iteration like this:</p>
  
  <pre><code>&lt;aura:iteration items="{!v.results}" var="res"&gt;                  
      &lt;tr class="slds-hint-parent"&gt;
          &lt;aura:iteration items="{!v.ColumnsNameArr}" var="colName"&gt;
              &lt;td&gt;
                  &lt;div class="slds-truncate" &gt;
                      &lt;a href="javascript:void(0);"&gt;{!res[colName]}}&lt;/a&gt; 
                  &lt;/div&gt;
              &lt;/td&gt;
          &lt;/aura:iteration&gt;                    
      &lt;/tr&gt;
  &lt;/aura:iteration&gt;
  </code></pre>
  
  <p>How can I write correct {!res[colName]}? It is possible to do something like this in lightning?</p>