Browser dom speed tests

Benchmark created on July 25, 2011

Preparation HTML

<div></div> 
<script>
     var count = 100;
     var divs = new Array(count);
     var div = document.getElementsByTagName('div')[0]
  
     function testAppend(div) {
         var add = document.createElement('div');
         for (var i = 0; i<=1000;i++) {
             div.appendChild(add);
         }
     }
   
     function testPrepend(div) {
         var add = document.createElement('div');
         for (var i = 0; i<=1000;i++) {
             div.insertBefore(add, div.firstChild);
         }
     }
   
     function testInnerHTML(div) {
         for (var i = 0; i<=1000;i++) {
             div.innerHTML = "<div></div>";
         }
     }
     function testInnerHTMLBuffer(div) {
         var buffer=[];
         for (var i = 0; i<=1000;i++) {
             buffer.push("<div></div>")
         }
         div.innerHTML = buffer.join("");
     }
   
     function testInsert(div) {
         var add = document.createElement('div');
         for (var i = 0; i<=1000;i++) {
             div.insertBefore(add, div[0]);
         }
     }
  
</script>

Test runner

     testAppend(div);

     testPrepend(div);

     testInsert(div);

testInnerHTML(div)

testInnerHTMLBuffer(div)

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

• Revision 1: published on July 25, 2011
• Revision 5: published on December 10, 2012
• Revision 7: published on May 6, 2013