debugging advice

[Adrian]

Hi
I have an HTML page that loads 3 or 4 JS files under some conditions it
gives a script error on line 100 the html is only 10 or so lines long. So
when working out which line is in error do I count each line in each JS file
in order from the point at which they are loaded?

is there an app that would do that for me?

thanks

 

[RobG]

Hi
I have an HTML page that loads 3 or 4 JS files under some conditions it
gives a script error on line 100 the html is only 10 or so lines long. So
when working out which line is in error do I count each line in each JS file
in order from the point at which they are loaded?

is there an app that would do that for me?

Use Firefox (or similar such as Mozilla or Netscape) and the JavaScript
console. It will (most probably) tell you exactly where the error is
with a link to the line in the file - you don't even need an editor with
line numbering (though of course it would help).

 

[Adrian]

Thanks Rob,
Only one issue with that (my fault I should have said!) the site is
internal and only supports IE (5.5 and above).

Any other app I can use?

 

[Matt Silberstein]

Thanks Rob,
Only one issue with that (my fault I should have said!) the site is
internal and only supports IE (5.5 and above).

Any other app I can use?

You might try FF anyway and see if it returns an error that helps you
debug.


--
Matt Silberstein

Do something today about the Darfur Genocide

http://www.beawitness.org
http://www.darfurgenocide.org
http://www.savedarfur.org

"Darfur: A Genocide We can Stop"

 

[Dr John Stockton]

JRS: In article <[email protected]>,
dated Wed, 9 Nov 2005 17:35:17, seen in

I have an HTML page that loads 3 or 4 JS files under some conditions it
gives a script error on line 100 the html is only 10 or so lines long. So
when working out which line is in error do I count each line in each JS file
in order from the point at which they are loaded?

Probably.

You should, of course, be able to test using local files; once you have
counted as well as you can, you can if necessary pin down the line more
exactly by inserting a blank line and seeing whether the error line
number changes.

Another approach would be to take a copy of the page, copy into it the
included files, and debug that. Once the problem is understood, solved,
and tested in that it should be easy enough to fix the echt version.

 

[RobG]

Thanks Rob,
Only one issue with that (my fault I should have said!) the site is
internal and only supports IE (5.5 and above).

I don't see that makes any difference. You will generally find
programming in Firefox to be much better than in IE, you will quickly
learn where the differences are and learn to avoid them.

Of course you need to test frequently and thoroughly in IE as you go.

Any other app I can use?

There is the MS Script Editor that comes with Microsoft Office 2002 (and
newer I think), but that may be too high a price to pay and for
JavaScript and HTML it is awful

I just played with it again and it told me that 'title' is not a valid
attribute of an A element, it uses Microsoft Windows file paths with
backslashes, suggests and uses depreciated attributes, etc. I've had
enough.

I must say it looks a million dollars, but because of its misleading
advice, lack of decent support for web technologies and overly fussy UI,
it's worse than using a plain text editor.

Back to EditPlus...


[...]

 

[jussij]

There is the MS Script Editor .... and for JavaScript

and HTML it is awful

Take a look at the Zeus for Window IDE:

http://www.zeusedit.com/features.html
Note: Zeus is shareware (45 day trial).

It has features like configurable syntax highlighting, ftp/sftp
editing, project/workspace management, integrated version
control etc.

Zeus can even check you HTML for W3C conformance using
the Tidy HTML utility:

http://www.zeusedit.com/forum/viewtopic.php?t=194

Jussi Jumppanen
Author: Zeus for Windows