title: forEach is not a function error with JavaScript array
body: <p>I'm trying to make a simple loop:</p>
  
  <pre><code>const parent = this.el.parentElement
  console.log(parent.children)
  parent.children.forEach(child =&gt; {
    console.log(child)
  })
  </code></pre>
  
  <p>But I get the following error:</p>
  
  <blockquote>
    <p>VM384:53 Uncaught TypeError: parent.children.forEach is not a function</p>
  </blockquote>
  
  <p>Even though <code>parent.children</code> logs:</p>
  
  <p><a href="https://i.stack.imgur.com/cjUUW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/cjUUW.png" alt="enter image description here"></a></p>
  
  <p>What could be the problem?</p>
  
  <p>Note: Here's a <a href="https://jsfiddle.net/swb12kqn/1/" rel="noreferrer">JSFiddle</a>.</p>