Internet Explorer Vs. Firefox Javascript Array Performance
Oct 10, 2006
I am trying to complete a javascript application and am having problems
with code similar to that show below.
Much testing has shown that Firefox finishes the code shown in around
0.25 secs but Internet Explorer 6 takes a massive 3.5 secs! Internet
Explorer 7 gets it down to around 2 seconds - but that's still 8 times
slower than Firefox and way unacceptable for my userbase.
Looking through the newsgroups there is some discussion around the
differences between the way the two browsers handle arrays - but a
performance differential such as this is just unbelievably dismal.
Unfortunately I need to continue to use arrays of objects and have to
support the Internet Explorer client base. I have already added
specification of the array size and also removed the use of array
"push"ing - flattening the array is not really an option. Code:
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Apr 2, 2009
I am entering the so far very exciting world of javascript. However, I am perplexed at the following. I am setting a function to run every second with 'setInterval("runMonitor()", 1000)'. This works magically in Firefox, however works exactly one time in IE6 and then stops.
Code:
function runMonitor(){
var rflag = <?php echo $jsonopt; ?>;
if (rflag == "1"){
return 0;
}
updateSystemUptime();
updateInstanceStatus();
/* updateSystemStatus(); */
} setInterval("runMonitor()", 1000);
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Mar 4, 2010
I've recently transitioned from kubuntu to slackware 13.0. I find that although crossover could "run" a fully functional Internet Explorer session on kubuntu, there are all kinds of problems getting IE working correctly on slackware. (with wine or crossover). This begs the question: Is there a firefox plugin that would enable me to test javascript on firefox as if the javascript were on IE? If not, I'll be that I am not the only developer that could use such a feature.
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Mar 28, 2009
Here's another cross-over issue between the two browsers: IE and Firefox Please, take the time to view my test website: www seemyinvestments dot com I suggest you use Firefox first, Note the first page will be the index.php for the very website itself. Please, scroll down the source code file until you see the following line: $mainframe =& JFactory::getApplication('site');
Note the word, JFactory, is underlined, and the word, getApplication, is in green. Clicking on either word will successfully invoke a AJAX function in Firefox. For example, a popup window will appear in the upper-righthand corner of the browser if you click on the green word, getApplication. (The popup has test data in it so it doesn't make any sense right now.) Clicking on the word, JFactory, will display that source code file using AJAX....quick and clean.
With Internet Explorer, this is all suddenly broken! I swear it worked as good as in Firefox, and now suddenly nothing happens. With IE, two runtime errors occur. One Syntax Error, Line 214, and the other is a 'Expected Identifer' error, Line 4114. How the heck can I track down these errors? (What's out there an IE equalvent to FireFox's Error Console??)
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Dec 16, 2011
I wrote the following small HTML page, trying to play a sound in Firefox 8 and Internet Explorer 9. The button and the <a></a> link work fine, but calling from the <script></script> tag does nothing. Does anybody know, what can be wrong, and what I can do? I'm sorry, you have to supply the oef.wav file, since I can't upload it.
[Code]....
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Jan 11, 2007
I have a script that works in Firefox but not IE6-
<script language="JavaScript" type="text/javascript">
document.Params.ThisPageURL.value=document.URL;
var x = new Date ();
document.Params.TimeZoneOffset.value =x.getTimezoneOffset();
document.Params.submit ();
</script>
The form is set this way:
<FORM ACTION="<?php echo("$Action"); ?>" METHOD="POST" NAME="Params"
<input type="hidden" NAME="ThisPageURL" value=""><input type="hidden"
Name="$ERR" value=""><input type="hidden" name ="TimeZoneOffset"
value=""><input type="hidden" Name="$U" value=""><input type="hidden"
Name="$R" value=""><input type="hidden" Name="$T" value="">
I get the following error in IE:
document.Params.ThisPageURL is null or not an object
Any idea what the problem is ?
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Jun 17, 2009
I developed a website using jQuery plugins in part of it. Couple of visitors visited the website with internet explorer complained that some part of the website does not function at all. I have Internet Explorer 8 installed and I dont know how to downgrade it.[URL]...
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Jul 18, 2010
I'm running a basic hello world page:
Whenever I open the page in Chrome, my "Hello" message pops up, but in any other of my browsers, it doesn't. This page is also being hosted basically from a file on my computer, on the C drive.
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Apr 7, 2011
I have used the Nivo Slider on my website: [URL]. It displays just fine on Firefox but not on IE9, it displays it as if all the images are stacked on top of one another going down the page, but the images don't actually display. Only when I turned on compatibility view on IE9 that the page works properly. I have tried placing the javascript:
Code:
<script src="[URL]" type="text/javascript"></script>
<script src="[URL]" type="text/javascript"></script>
<script src="[URL]" type="text/javascript"></script>
Between the <head> tags but then it doesn't load. It only loads if I add them into the page. Above my slider:
Code:
<div id="slider" style="width: 400px ! important; height: 300px ! important;"><img src="[URL]frontpage1.jpg" border="0" alt="frontpage1" /> <img src="[URL]frontpage2.JPG" border="0" alt="frontpage2" /> <img src="[URL]frontpage3.jpg" border="0" alt="frontpage3" /> <img src="[URL]frontpage4.jpg" border="0" alt="frontpage4" /> <img src="[URL]frontpage5.jpg" border="0" alt="frontpage5" /><img src="[URL]frontpage6.jpg" border="0" alt="frontpage6" /><img src="[URL]frontpage7.jpg" border="0" alt="frontpage7" /><img src="[URL]frontpage8.jpg" border="0" alt="frontpage8" /><img src="[URL]frontpage9.jpg" border="0" alt="frontpage9" /><img src="[URL]frontpage10.jpg" border="0" alt="frontpage10" /></div>
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Nov 17, 2010
It works in Google Chrome but not Firefox and Internet Explorer. My computer has blocked Opera and I don't know how to change that. Too much energy to investigate now, I'll do so later.I'm assuming GoogleChrome is fixing a syntax error that FF and IE don't.
var request;
request=false;
try {
[code]....
has the problem. When I set up alerts to see what works and what doesn't, this code seems to be causing the FF and IE to not work, but I can't tell what it is that's causing them to fail.This is javascript that is suppose to check if a name has been taken by another user.
I'm working on a fairly large project that I wish to be the new formspring, (size wise) I procrastinated for 2 weeks of my 12 week break and now that I'm just getting started on it I'm running into an ishness load of problems...
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May 18, 2010
I am trying to make comments system and i want to add smileys.the content of each comment is written in TEXTAREAI have a JS code that gets a "smiley code" like :) and adds it into the TEXTAREA. i mean it adds :) :( XD ;) or what i sent to the function.the TEXTAREA code:
Code:
function Add_Smiley(smiley)
{
[code]....
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Jul 23, 2005
I have a new (XP) version of IE, but when I click on links that are
javascript they do not seem to work and suggestings?
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Mar 23, 2010
I am trying to play a video from javascript using the WMP plugin in IE.It works fine in Firefox and Chrome, but not IE.[code]This doesn't play the video in IE8.It works if I use the SRC parameter when I embed the player, but I need the video to change when I click on buttons.
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Jul 23, 2005
I have a page with two frames, 'header' and 'main'. The following
code works in Netscape, but in Internet Explorer. The second bgColor
line produces an error:
function test(){
top.frames.header.document.bgColor='white' //works fine
top.frames.main.document.bgColor='white' //fails
}
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Jul 23, 2005
my javascript create new element when it is first loaded.
the code work fine in opera and mozilla and netscape, but it failed in
microsoft IE. message:
Internet Explorer cannot open the Internet site
I check the google, found some info. But, none related to my problem.
the cause is due to creating new element while the page is loading.
How to do that without problem?
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Apr 3, 2009
So this works just fine in FF. In IE7 I am getting this error. I can see my content load in the background, when I hit ok it takes me to a page cannot be displayed page. If I comment out:
<script type="text/javascript" src="js/moodalbox.js"></script>
It doesnt present that error, but that is obviously not an option. Here is my code:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />[CODE]......
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Nov 11, 2004
<script language="JavaScript" type="text/javascript">
<!--
var ic = 4;
var xoxo = new Array(ic);
xoxo[0] = "[image1].jpg";
xoxo[1] = "[image2].jpg";
xoxo[2] = "[image3].jpg";
xoxo[3] = "[image4].jpg";
function pickRandom(range) {
if (Math.random)
return Math.round(Math.random() * (range-1));
else {
var now = new Date();
return (now.getTime() / 1000) % range;
}
}
var choice = pickRandom(ic);
</script><SCRIPT LANGUAGE="JavaScript">document.writeln('<TD'+'><IMG SRC="'+xoxo[choice]+'"><'+'/TD>');</SCRIPT>
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Aug 18, 2006
I'm having trouble figuring out what's going on with IE6's
Msxml2.XMLHTTP object. I have two feed addresses in this stripped down
version of my code below. Both work fine in Firefox (using the
XMLHttpRequest object), but only the thinkgeek one works in IE. In the
processFeed function, it shows the problem - the first alert shows 0
for the wikihow feed in IE, though it can still display the
responseText. Any insight? Code:
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Apr 19, 2007
How does one find the value of a drop down in Internet Explorer?
The form below works in Firefox and Safari. But not in Internet
Explorer. Can someone tell me how to code this so IE understands it?
<script language="javascript">
function copyDescription() {
document.myForm.Description.value=document.myForm. MakeDescription.value
}
</script>
<form name="myForm" id="myForm">
<SELECT name="MakeDescription" onChange="copyDescription();">
<OPTION selected value="">Choose</OPTION>
<OPTION>A</OPTION>
<OPTION>B</OPTION>
<OPTION>C</OPTION>
</SELECT>
<br /><br />
<input name="Description" id="Description" type="text" />
</form>
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Mar 5, 2009
i want to run a bit of js not in ie but in all others within some js i'm doing.is this the way to do it? (got this from o'reilly's js;definitive guide book):
Code:
/*@cc_on
@if( @_jscript )
; // nothing for internet explorer[code]....
how should braces be in that, if they should at all? i mean if i wanted multiple lines of js code in the either non-ie or ie blocks how and where would {}'s go?also does that work for ie8?
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Feb 15, 2006
my site seems to be working perfectly on firefox but when I access it on internet explorer everything loads fine but there is a yellow marker on the status bar of IE saying there are errors on the page. I copied the source into dreamweaver to check for browser specefic bugs but the only bugs that came up were that in Netscape. So any idea why this is happening? The link to my site is in my profile.
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Feb 6, 2007
How can I set 'frameborder' attribute in ie? I tried this but didn't work:
var foo = document.createElement("iframe");
document.body.appendChild(foo);
foo.setAttribute('frameborder',Ɔ');
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Aug 7, 2010
I am having trouble with Internet Explorer AGAIN.How do you use the setTimeout for it?This is what I am using and it is working on all of the other browser:Code:setTimeout("growContact(" + (height+20) + ")", 0);
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Jul 23, 2005
I have a problem, and maybe someone knows the solution.
Context :
- Browser : IE 6.0
- Application server : Livewire Pro
- Client OS : Windows 98 SE
- Server OS : NT4
- I have a frameset, including several pages, but only one will be
used for the example.
--------
| a |
--------
| b |
--------
- a form on the main page (a.html i.e.)
- a data is manually typed, then I submit the form => the action will
redirect to a new page (c.html)
- on this new page, I do a history.go(-1), so I'm back on the a.html
page, and the data is still there (it's ok)
- cache parameters : "check on every page visited"
Problem :
- From the main page, if a popup gives the data to the form, so after
the submit and the history.go(-1), the form contains NO data !!!
So, the data is lost when the data input is not made by hand.
I have no troubles with Netscape/Mozilla, but only with IE.
Maybe someone would have an idea ?
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Jul 23, 2005
I have a radiobutton group in HTML in a form:
Sex: <input type="radio" name="Sex" value="male">Male
<input type="radio" name="Sex" value="female">Female
<input type="radio" name="Sex" value="unknown">Unknown<br>
When I call document.forms[0].elements['Sex'].type I don't get "radio" but
"undefined" instead.
For all other kinds ("text", "textarea", ... etc) of input fields the type
is returning a correct string.
It only seems to happen with Internet Explorer (using version 6).
What am I doing wrong?
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Jul 23, 2005
I've developed a calendar program in javascript, and up until now I've
done most of my testing using Mozilla and Firefox. Everything works
fine, but when I try to use Internet Explorer my response time is
sometimes 50 times slower than using Mozilla.
I know I haven't given you much to go by, but I'm not looking for an
answer so much as an approach to debugging the problem. For example,
does anyone here know of a good web site which deals with
browser-specific javascript performance issues?
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