title: Library that defaults scrollbar to always be fully scrolled
body: <p>I'm making an Electron app (pure html, js, css).
  I need my div's scrollbar to be fully scrolled by default. </p>
  
  <p>I already have a function that scrolls to bottom whenever I call it:</p>
  
  <pre><code>function updateScroll() {
      var height=$("#chatArea").height();
      $("#chatWrapper").animate({ scrollTop: height }, "fast");
  }
  </code></pre>
  
  <p>It works, but... I add new content with animations and constantly calling the scrolldown function just ends up looking laggy. It would be much better if the scrollbar was always on bottom.</p>
  
  <p>I was wondering if there is maybe a (npm) library that I can include and use to force the scrollbar to be fully scrolled by default (but user can still scroll up-down)..</p>
  
  <p>Does anyone have experience with this?
  Thank you.. :-)</p>