jQuery append vs html vs innerHTML list performance

JavaScript performance comparison

Revision 48 of this test case created


Just a simple example showing the speed difference between populating a list with .append() & .html() and innerHTML

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
<ul id="list">
<div id="myDiv">
Benchmark.prototype.setup = function() {
    var len = 20;

Benchmark.prototype.teardown = function() {

Preparation code output

Test runner

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

Java applet disabled.

Testing in unknown unknown
Test Ops/sec
jquery .append()
for (var i = 0; i < len; i++) {
  $('#list').append($("<li></li>", {
    text: "Test " + i
jQuery .html()
for (var i = 0; i < len; i++) {
  $('#list').append('<li>Test ' + i + '</li>');
javascript innerHTML
var html = '';
for (var i = 0; i < len; i++) {
  html += '<div>Test ' + i + '</div>';

$('#list').get(0).innerHTML = html;

Compare results of other browsers


You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:


Comment form temporarily disabled.

Add a comment