I want to start and stop js-profiling from my js-code in Internet Explorer.
Like we can do it in Firefox through:
- console.profile()
- console.profileEnd()
Does anybody know whether it is possible in IE?
For JavaScript, XmlHttpRequest, DOM Access, Rendering Times and Network traffic for IE6, 7 & 8 you can use the free dynaTrace AJAX Edition
I think you are using Firebug with Firefox, so you could use Firebug Lite.
And IE8 has a built-in console, you should read the docs, there are maybe the same functions.
Related
For example, I found that calling something like this
document.getElementByID('myElement').value.trim();
crash in IE8 because strings don't have trim() in IE8. Is there any way (e.g. using some website in the internet) to run such short, one-off code to verify issues like this without having to find a computer with Internet Explorer?
I use Browserling all the time to make sure html renders properly. I know it does run javascript, but that's in the cloud. The paid version has a feature called "bug hunter" but I don't know exactly what it does. They have a 30 day money-back guarantee so it might be worth trying it for a month. Or you could email them and ask.
Use the Developer tools in the newer versions of IE.
Open IE (desktop mode) and press F12.
In the toolbar, you can select the Browser Mode and the Document Mode.
Before you mark this as duplicate, please note that the other questions are all over a year old. We are in 2011, and we still don't have half a decent I.E. debugger like Firebug. The only few solutions are paid.
Are there any tools I am missing? How do you go about debugging JS in IE?
IE has the IE Developer toolbar. It's been available since IE7. It's not as good as Firebug but it's better than nothing and it's getting better with each version
Forgot to include the link : http://www.microsoft.com/downloads/en/details.aspx?FamilyID=95e06cbe-4940-4218-b75d-b8856fced535
The Developer Tools of IE8. You even got a console object to log with. And in IE8 you can switch to IE7 engine.
There's also Firebug Lite.
Also, IE9 comes with a full fledged JS debugger.
If you can deal with using just logging rather than a full-on debugger, you could use a cross-browser logging library such as my own log4javascript.
This question already has answers here:
Can I override the Javascript Function object to log all function calls?
(6 answers)
Closed 5 years ago.
Is there a debugging system that allows me to record javascript function calls and their parameters as they occur? this would allow me to trace and debug applications in live/client situations without the performance hit due to manual logging.
Edit: I'm not talking about manually calling functions using a 'console' window and viewing the results, or manually adding 'trace' or 'log' commands into my javascript. I need it to work with any running javascript.
Can you override Function.prototype.call and retrieve arguments and arguments.callee?
This would have the effect of reporting on ALL functions and therefore being super verbose, but maybe you'd want to filter.
Then you have the question of how you want to report, perhaps with if (console) console.log
you could take a look at http://ajax.dynatrace.com/ajax/en/ - its IE only but pretty darn good, see this article by j. Resig : http://ejohn.org/blog/deep-tracing-of-internet-explorer/ > "..dynaTrace provides some information that I’ve never seen before – in any tool on any browser."
#Jenko if what you're looking for something similar to an IDE debugger, in that case Internet Explorer 8 and 9 have a built-in Developer Tools (press F12) and Chrome has Developer Tools as well. Both IE and Chrome allow you to set breakpoints in your code and step through it while it's running. Firefox has Firebug, which others have mentioned, and it too allows to set breakpoints and examine the execution of your code. Opera has Dragonfly (built-in) and has the same features as the other browsers.
As I was reading the answers and laughing at the duplicate answers of "You can use Firebug!" I realized.... you can use Firebug.
Seriously, it has a "profile" command that does exactly what you are asking for. Safari and Chrome have this feature so you can check in there as well. IE8/9 has a "profiler" tool which is similar (but I don't know if it can be called from JavaScript with console.profile())
This will give you accurate times since any code and logging you add would also afect the actual performance. And because this feature is in the top browsers, you get a reasonable amount of data.
I've found fireflow: https://addons.mozilla.org/en-us/firefox/addon/fireflow/
incredible helpful.
If you're talking about browser-side javascript dedub you can use Firebug, which is an excellent tool.
http://getfirebug.com/
Here you can find a step-by-step tutorial:
http://www.digitalmediaminute.com/screencast/firebug-js/
Yes. all major browsers have a debugger built-in (IE, Chrome, Safari), or available as a add-on (Firebug for Firefox).
Firebug is good for this. Or you can use Google Chrome's built-in debugger as well.
for Firefox Firebug
for IE deeloper tool
for chrome built-in debugger is nice to use
Arguably the best online Javascript Code Quality Controll is JSLint. It not only checks code for errors, it improves the coding style of programmes entirely<< this is the reason the author has made it in the first place. My 0,02 $
http://www.jslint.com/
I don't get any error in firefox or firebug, but yet in IE I get invalid argument for some reason, and I can't figure out what is the invalid argument, the javascript halts when "error" is discovered .. what can I do to debug it ?
Firebug Lite is awesome.
If you're running IE8, you can use the developer tools by pressing F12. You can also download them for IE7.
If you have Visual Studio you can use it directly to debug javascript.
First uncheck the advanced IE settings "Disable script debugging" then attach VS to the IExplorer process (Tools => Attach To Process then find the process).
Clearly this is not the easiest option here but can work in a pinch. If you are already using VS to do your development just disabling script debugging and launching your website with IE will allow the JS debugger to work automatically.
Enable the script debugger in IE.
Note that with jquery or mootools 90% of the IE bugs (when it works fine in FF) is because I didn't explicitly extend an element I was working with.
In firefox you can just say element.jquery_function(), however with IE the element must be explicitly extended with element = $(element), or just get in the habit of writing $(element).jquery_function().
You didn't give enough info to debug your problem, but i'd guess that is a good place to start.
note: I use mootools but i'm assuming this also applies to jquery
get internet explorer 8, or the internet explorer developer toolbar
I prefer DebugBar over Firebug Lite.
I would use a cross-browser logging library such as my own log4javascript.
If you're on IE 8, that comes bundled with developer tools.
If you're on IE 7 or 6, there's the free IE Developer Toolbar from Microsoft.
There's also Companion.JS for IE 6/7.
Does anyone know if a browser-independent debugger exists...
For example I have been using Firebug in Firefox but if the web developers use other browsers - nothing.
I was wondering if there is some kind of "global" debugger that can attach to any browser and just debug?
Any ideas?
The makers of Firebug also make Firebug Lite, a JavaScript file that you can include in your webpage. They say that it works in IE, Opera, and Safari.
Steve
Since each browser has its own engine with its own quirks and such, it's more or less impossible to have a universal debugger.
Aptana, which is really just a rebranded Eclipse for web projects, has a debugger built in to the IDE, and comes closes to that ideal--in theory. It uses the Eclipse platform's debugging interface, but it still needs to be plugged into a browser. In Firefox, this works by plugging into...Firebug's JS debugger. But, it allows you to set breakpoints and step through code directly from the IDE (quite helpful for external JS files). For IE debugging, you need to purchase the Pro version, so I can't vouch for its quality. AFAIK, it doesn't support other browsers.
Nearly all the browsers have there own JavaScript debugger. Simply because they don't provide the same API (if they provide some) for accessing the JavaScript engine.
So, to complete your list, you have DragonFly for Opera, and WebInspector for the browsers based on WebKit (like Safari).
For IE you can also use Visual Studio to debug JavaScript - and it's better than the Microsoft Script Debugger. I'm not sure if the express editions are also capable of this.
Added: Both VS2005 and VS2008 are capable of JS debugging, although the newer product is better of course.
I run a Webservice that allows developers to "debug" their Javascript in the sense of finding bugs via a Javascript validator. See the HTML5 IDE guide for details to set it up with the "global" vim editor.
You can debug javascript with express edition of visual studio. Look here for details
Short answer: I don't believe so, but I hope you find one because I'd love to have one.
However, if you haven't been following IE development lately, IE's JScript debugging is alot less painful now with IE8; it includes, by default, some dev tools that do pretty much everything that Firebug does with the exception of AJAX debugging (but I prefer a protocol analyzer anyways for AJAX). It even implements an executable console, which includes several of the console.X methods from Firebug!
The profiler, I'm tempted to say, is nicer than Firebug's - simply because it lets you export the results directly to CSV. The actual debugger is as full-featured as JS debuggers get, with stepping/breakpoints/direct input.
Also, I haven't heard Venkman mentioned yet; its the grand-daddy of Firefox debugging (and other Mozilla Javascript). Not as popular as Firebug, but it definitely has its followers.
Lots of good information on this page as well: wikibooks.org/wiki/JavaScript/Debugging
javascript depends on the browser you are using (thus compatibility problems). To debug explorer you may use this: Microsoft Script debugger
you can use jsdt, you can get some information from https://code.google.com/p/jsdt/