javascript-debugger

can a Javascript debugger do "when this variable is read", break point there?

can a Javascript debugger do "when this variable is read", break point there, like a C / C++ debugger? I am calling some library function, and deep down, it is finally do something with that argument, and instead of manually finding where it is actually using that value, can i say, stop the code when the variable is accessed? ...

Disable "Slow script" dialog in Safari while debugging javascript?

I'm using the built-in javascript debugger in Safari 4 on Windows (the WebKit Web Inspector), but when I'm stepping through code I keep getting the "Slow Script" dialog pestering me to abort/continue the script every few seconds. This is irritating. Is there a way to turn this off or otherwise prevent it from prompting me every few seco...

Microsoft Script Debugger does not display any information after error

I'm trying to debug a Javascript error which only occurs in Internet Explorer. I have Microsoft Script Debugger installed, and have used it successfully in the past. On this error, though, I select "Yes" to do-you-want-to-debug?, and it opens up Script Debugger, which displays nothing. Running documents window is empty, call stack is ...

IE8 javascript debugger is now broken

I am on Windows 7, using IE8 and Visual Studio 2005. I have been enjoying the built in javascript debugger in IE8 for several months. About 2 weeks ago, I installed some security update for IE 8 (possibly KB978207) and all of a sudden the javascript debugger is now broken. If I get a warning from IE 8 that an error occurred and asking ...

Why sometimes Firebug won't show list of Javascript files to set breakpoint?

For example, if I go to http://sorgalla.com/projects/jcarousel/examples/dynamic_ajax_php.html and go to Firebug, and set Scripts to Enabled, and Show Chrome Source and Static, eval, and event script, still no file list is shown so that I can view them and set a breakpoint. In another project, I could. Is there a reason why? ...

How to debug JavaScript files which are loaded dynmically?

Currently the web application I am working on loads in a number of script files using jQuery.Load() when the document DOM is ready. However, if those script files have syntax errors, neither Firebug or IE Developer Tool can reliably shows the line with error or give some really huge line numbers. How can I debug such scripts? Or should ...

jsFiddle clones?

Are there any other websites out there that offer similar functionality to http://jsfiddle.net/ ? What are the pros & cons of each? ...