jQuery append vs html vs innerHTML list performance

JavaScript performance comparison

Revision 53 of this test case created

Info

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

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js">
</script>
<ul id="list">
</ul>
<div id="myDiv">
</div>
<script>
Benchmark.prototype.setup = function() {
    var len = 20;
};

Benchmark.prototype.teardown = function() {
    $("#list").empty();
    $("#myDiv").empty();
};
</script>

Preparation code output

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

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

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

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