jQuery append vs html vs innerHTML list performance

JavaScript performance comparison

Revision 89 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>
<div id="list" style="display:none">
</div>
<script>
Benchmark.prototype.setup = function() {
    var len = 2000;
};

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

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jquery .append()
var html = [];
for (var i = 0; i < len; i++) {
  html.push('<div>Test ' + i + '</div>');
}

$('#list').append(html.join(''));
pending…
jQuery .html()
var html = [];

var list = $('#list');
html.push(list.html());

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

list.html(html.join(''));
pending…
javascript innerHTML
var html = [];

var list = document.getElementById("list");
html.push(list.innerHTML);

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

list.innerHTML = html.join('');
pending…
jquery .append() array
var html = [];
for (var i = 0; i < len; i++) {
  html.push('<div>Test ' + i + '</div>');
}

$('#list').append(html);
pending…
Native Dom create & append
var list = document.getElementById('list');
for (var i = 0; i < len; i++) {
  var div = document.createElement("div");
  div.appendChild(document.createTextNode("Test " + i));
  list.appendChild(div);
}
pending…
Native Dom create & append after
var list = document.createElement("div");
list.id = "list";

for (var i = 0; i < len; i++) {
  var div = document.createElement("div");
  div.appendChild(document.createTextNode("Test " + i));
  list.appendChild(div);
}

var oldList = document.getElementById("list");
oldList.parentNode.replaceChild(list, oldList);
pending…

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