document.createDocumentFragment()

document.createDocumentFragment()

HTML

<!-- https://developer.mozilla.org/en-US/docs/Web/API/document.createDocumentFragment -->
<ul>
    <li>Konquour</li>
</ul>

JavaScript

var ul = document.getElementsByTagName("ul")[0]; // assuming it exists
var docfrag = document.createDocumentFragment();
var browserList = ["Internet Explorer", "Mozilla Firefox", "Safari", "Chrome", "Opera"];

browserList.forEach(function(e) {
  var li = document.createElement("li");
  var span = document.createElement("span");
  li.appendChild(span);
  span.textContent = e;
  docfrag.appendChild(li);
});

ul.appendChild(docfrag);
// a list with well-known web browsers