jQuery append vs html vs innerHTML list performance

JavaScript performance comparison

Revision 43 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/1/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("<li>Test " + i + "</li>");
}
pending…
jQuery .html()
var list = $('#list');
for (var i = 0; i < len; i++) {
  list.html(list.html() + '<li>Test ' + i + '</li>');
}
pending…
javascript innerHTML
for (var i = 0; i < len; i++) {
  document.getElementById('list').innerHTML += '<div>Test ' + i + '</div>';
}
 
pending…

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