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Posted 25 Mar 2009

Simple Browser Iteration Test

, 25 Mar 2009
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Check different browsers' responses to a simple iteration test (JavaScript).


There is a big battle out there about Internet Browsers! Everyone says their browser is the best and fastest. I think this is the time that we CodeProject guys should start to create our test tools and not listen to what ads say.

I am not a professional tester in this case. As a web developer, my first concern is the iteration speed. For this purpose, I have created a kid-level HTML page to iterate 10,000 times and add a simple text to a text area within the page:

 <title>Simple Browser Iteration Test</title>
 <textarea id="text" style="height: 300px;" cols="80" rows="20"></textarea>
 <script language="javascript" type="text/javascript">
  var t = document.getElementById("text");
  var d1 = Date();
  for (var i = 0; i < 10000; i++) {
     t.value += i.toString();
  var d2 = Date();
  document.write("<br />" + d1 + "<br />" + d2);

As you can see, it is really simple and does not need any extra explanation.

The following are the results of running this page on my machine in different browsers:

1. IE8-64bit: ~6 sec


2. IE8-32bit: ~7 sec


3. Chrome ~12 sec


4. FireFox 3.0.7: ~4min and 56sec


I think you got the main idea. I request to create an Open Source project here to work on Browsers in real action tests in which everyone can check their code and make any suggestions. It would help to find out the reality, not what vendors say!


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

United States United States
I got my BS in Software Engineering from Iran, worked there for 4.5 years mainly in industrial automation field. Then I moved to Australia. In Australia, I had a great chance to work at some big companies. Since 2009 I have been living in the States. I received my MS in Information Systems from Illinois State University. Currently, I am a Senior Software Development Engineer.

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Comments and Discussions

QuestionHardware? Pin
Danila Korablin30-Mar-09 3:51
memberDanila Korablin30-Mar-09 3:51 
AnswerRe: Hardware? Pin
Tecfield30-Mar-09 15:59
memberTecfield30-Mar-09 15:59 

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