title: Nested forEach loop does not work
body: <p>I have some data that is in JSON object array. I'm trying to use nested forEach loops to extract the data. </p>
  
  <p>The data is modeled like belo. There's multiple dataModels and multiple childNodes inside the dataModels. </p>
  
  <pre><code>//this is what an example data looks like
  dataModels[0].childNodes[0].appId
  </code></pre>
  
  <p>I am trying to do something like the following:</p>
  
  <pre><code>dataModels.forEach(function(entry){
      entry.forEach(function(childrenEntry){
        console.log(childrenEntry.appId);
      })
  })
  </code></pre>
  
  <p>The above however does not work and it gives me an error saying that 'entry' is not a function. Is there a better way to achieve what I'm trying to do?</p>