Preparation code

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here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes 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here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div><div>some long text goes here some long text goes here some long text goes here some long text goes here</div></div>
<script>
  function fastInnerHTML(el, html) {
   var clone = el.cloneNode(false);
   clone.innerHTML = html;
   el.parentNode.replaceChild(clone, el);
   return clone;
  }
  
  function makeArray(obj) {
   var arr = [];
   for (var i = obj.length; i--;)
   arr[i] = obj[i];
   return arr;
  }
  
  /**
   * Replaces text for all elements in the given array.
   * @param elems
   * @param text
   */
  var replaceText = (function() {
   var dummy = document.createElement("div");
   dummy.innerHTML = "text";
   var TEXT = (dummy.textContent === 'text') ? 'textContent' : 'innerText';
   return function(elems, text) {
    for (var i = elems.length; i--;) {
     elems[i][TEXT] = text;
    }
   };
  })();
  
  var root = document.getElementById("full");
  var divs = makeArray(root.getElementsByTagName("div"));
  var $divs = $(divs);
  
  var node = document.createElement("div");
  node.innerHTML = "some long text goes here";
  
  var textNode = document.createTextNode("some long text goes here");
</script>

Preparation code output

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

$divs.text("some long text goes here");

for (var i = divs.length; i--;) {
 divs[i].innerHTML = "some long text goes here";
}

for (var i = divs.length; i--;) { /* ignore for IE! */
 divs[i].textContent = "some long text goes here";
}

for (var i = divs.length; i--;) {
 var child, el = divs[i];
 while (child = el.firstChild) {
  el.removeChild(child);
 }
 el.appendChild(document.createTextNode("some long text goes here"));
}

replaceText(divs, "some long text goes here")

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