title: Which method is faster to select body element?
body: <p>What is better to use for performance in JavaScript?</p>
  
  <pre><code>document.children[0].children[1]
  </code></pre>
  
  <p>vs</p>
  
  <pre><code>document.querySelector('body')
  </code></pre>
  
  <p>Which is more faster in performance?</p>