Browser Diet - DOM Manipulation

JavaScript performance comparison

Revision 15 of this test case created by John

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<div id="myList"></div>
    

Preparation code output

<div id="myList"></div>

Test runner

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Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
DOM manipulation every iteration
var myList = document.getElementById("myList");

for (var i = 0; i < 100; i++) {
  myList.innerHTML += "<span>" + i + "</span>";
}
pending…
DOM manipulation after all iterations
var myList = "";

for (var i = 0; i < 100; i++) {
  myList += "<span>" + i + "</span>";
}

document.getElementById("myList").innerHTML = myList;
pending…
string
var myListHTML = '';

for (var i = 0; i < 100; i++) {
  myListHTML += "<span>" + i + "</span>";
}

document.getElementById("myList").innerHTML = myListHTML;
pending…
jQuery
var myListHTML = '';

for (var i = 0; i < 100; i++) {
  myListHTML += "<span>" + i + "</span>";
}

$("#myList").html(myListHTML);
pending…
Another
var myListHTML = $("#myList")[0].innerHTML;

for (var i = 0; i < 100; i++) {
  myListHTML += "<span>" + i + "</span>";
}
pending…
Meh
var myListHTML = '';

for (var i = 0; i < 100; i++) {
  myListHTML += "<span>" + i + "</span>";
}

$("#myList")[0].innerHTML = myListHTML;
pending…
DOM manipulation after caching innerHTML
var myListHTML = document.getElementById("myList").innerHTML;

for (var i = 0; i < 100; i++) {
  myListHTML += "<span>" + i + "</span>";
}
pending…

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Revisions

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