title: How to select the elements by `tabindex`
body: <p>I would like create a array by selecting the elements by <code>tabindex</code> is it possible?
  if so what is the correct way to do? I understood that, we need to loop through all element and find the prop declared with <code>tabindex</code> but looking for the right way.</p>
  
  <pre><code>&lt;div class="focusguard" id="focusguard-1" tabindex="0"&gt;&lt;/div&gt;
  &lt;div&gt;
    &lt;input class="user-input" type="text" autofocus tabindex="1"&gt;
  &lt;/div&gt;
  &lt;div&gt;
    &lt;ul&gt;
      &lt;li class="first-item" tabindex="2"&gt;
        &lt;span&gt;Item 1&lt;/span&gt;
      &lt;/li&gt;
      &lt;li tabindex="3"&gt;Item 2&lt;/li&gt;
      &lt;li tabindex="4"&gt;Item 3&lt;/li&gt;
      &lt;li tabindex="5"&gt;Item 4&lt;/li&gt;
      &lt;li tabindex="6"&gt;Item 5&lt;/li&gt;
      &lt;li tabindex="7"&gt;Item 6&lt;/li&gt;
      &lt;li tabindex="8"&gt;Item 7&lt;/li&gt;
      &lt;li tabindex="9"&gt;Item 8&lt;/li&gt;
      &lt;li tabindex="10"&gt;Item 9&lt;/li&gt;
      &lt;li class="last-item" tabindex="11"&gt;Item 10&lt;/li&gt;
    &lt;/ul&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How can i create a new array  by <code>tabindex</code> -?</p>