title: NodeList operations
body: <p>I got set of divs with integer values (always) unfortunately only with class (cannot add id because they are generated in a loop by other app i cannot mess with)</p>
  
  <pre><code>&lt;div class="aaposition"&gt;3&lt;/div&gt;
  &lt;div class="aaposition"&gt;4&lt;/div&gt;
  &lt;div class="aaposition"&gt;5&lt;/div&gt;
  &lt;div class="bbposition"&gt;30&lt;/div&gt;
  &lt;div class="bbposition"&gt;30&lt;/div&gt;
  &lt;div class="bbposition"&gt;30&lt;/div&gt;
  </code></pre>
  
  <p>So i'm creating two nodelists (good that both lists got exact length).</p>
  
  <pre><code>aalist = document.getElementByClassName('aaposition');
  bblist = document.getElementByClassName('bbposition');
  </code></pre>
  
  <p>What i need to do is to sum results of multiplying aaitem[i] with bbitem[i] and show it somewhere </p>
  
  <pre><code>sumlist = 0;
  for (i = 0; i &lt; aalist.length; i++) {
     sumlist += aalist[i] * bblist[i];
  }
  showdiv.innerHTML = sumlist;
  </code></pre>
  
  <p>But i don't know how to pick those values from nodelist, how can i pick the value i'm interested in?
  Is it <code>.innerHTML</code>, <code>.value</code> or what?
  All i found was style examples (<code>.style.background</code> ... etc.).</p>
  
  <p>Also do i need to parse into integer? Do i need to convert NodeList to array? </p>