innerHTML vs cloneNode

JavaScript performance comparison

Revision 359 of this test case created by Andoitz

Preparation code

<div style="width:1px;height:1px;overflow:hidden;">
<div id='box1'></div>
<div id='box2'></div>
<div id='box3'></div>
</div>
      
<script>
Benchmark.prototype.setup = function() {
  var testPattern = '<div>hello<div style="background-color: #000000;">ttt</div></div>';
  var i, testString;
  for (i = 0; i < 1000; i++) {
    testString += testPattern;
  }
  
  function replaceHtml(el,html) {
  	var oldEl = (typeof el === "string" ? document.getElementById(el) : el);
  	var newEl = oldEl.cloneNode(true);
  	newEl.innerHTML = html;
  	oldEl.parentNode.replaceChild(newEl, oldEl);
  }

};
</script>

Preparation code output

<div style="width:1px;height:1px;overflow:hidden;"> <div id='box1'></div> <div id='box2'></div> <div id='box3'></div> </div>

Test runner

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

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
replaceHtml
replaceHtml('box1',testPattern);
pending…
innerHTML
document.getElementById("box1").innerHTML = testPattern;
pending…

Compare results of other browsers

Revisions

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

0 Comments