jQuery append vs html vs innerHTML list performance (v99)

Revision 99 of this benchmark created on


Description

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

Preparation HTML

<script src="//code.jquery.com/jquery-git2.min.js"></script>

<div id="list"></div>

Setup

var len = 20;

Teardown


    $('#list').empty();
  

Test runner

Ready to run.

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

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

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

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

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

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

Revisions

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