jQuery append vs html vs innerHTML list performance (v166)

Revision 166 of this benchmark created by Shadow Fox on

Description

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

Preparation HTML

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<div id="list" style="display:none">
</div>

Setup

var len = 20;

Test runner

Ready to run.

Testing in
TestOps/sec
jquery .append()
var $list = $('#list');
var html = '';
for (var i = 0; i < len; i++) {
  html += '<div>Test ' + i + '</div>';
}

$list.append(html);
ready
jQuery .html()
var html = '';
for (var i = 0; i < len; i++) {
  html += '<div>Test ' + i + '</div>';
}

$('#list').html(html);
ready
javascript innerHTML
var $list = $('#list'),
  finalStr = '';

for (var i = 0; i < len; i++) {
  finalStr = finalStr + '<div>Test ' + i + '</div>';
}

$list[0].innerHTML = finalStr;
ready
Concat
var html = [];

for (var i = 0; i < len; i++) {
  html.push('<div>Test ' + i + '</div>');
}

$('#list')[0].innerHTML = html.join('');
ready

Revisions

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