Comments on: ParenScript vs script.aculo.us

By: Hunter Jerowski

Hunter Jerowski — Fri, 05 Mar 2010 01:39:55 +0000

Hello, I came across this article while searching for help with JavaScript. I have recently switched browsers from Chrome to Microsoft IE 6. Now I seem to have a issue with loading JavaScript. Everytime I browse website that needs Javascript, my browser doesn’t load and I get a “runtime error javascript.JSException: Unknown name”. I can’t seem to find out how to fix it. Any aid is greatly appreciated! Thanks

By: rudi

rudi — Fri, 30 May 2008 09:42:50 +0000

My pleasure, Ron! Glad I could help.

By: Ron Lusk

Ron Lusk — Thu, 29 May 2008 18:27:14 +0000

Thanks for your original posting. I borrowed the code and managed to set up a timed slideshow with it, with new list items being inserted into the head of a list and the oldest photo fading from the end of the list. This was a great help, thank you.

By: Raoul Duke

Raoul Duke — Sun, 03 Feb 2008 20:06:22 +0000

many thanks for this blog entry; i’m new to all things lisp (well, new in that is has been like 20 years since i last used it for my day job) and posts like this are a great help in getting my bearings. i want to learn enough to be able to cobble together weekend AJAXy hacks.

By: Edi Weitz

Edi Weitz — Sat, 15 Dec 2007 00:30:06 +0000

Regarding the single tags, see here:

http://weitz.de/cl-who/#*html-empty-tags*

By: rudi

rudi — Fri, 14 Dec 2007 01:28:15 +0000

No no, the documentation is very nice, and well-structured! If you wikify it, please consider keeping the official docs as well. In fact, I volunteer to convert the manual to hunchentoot / cl-who.

By: Vladimir Sedach

Vladimir Sedach — Fri, 14 Dec 2007 01:20:10 +0000

Arghh, sorry for the documentation! I’ve just moved to California last week and with all the running around trying to find an apartment and getting everything figured out I haven’t had time to touch Parenscript at all. One of the things I promised a few months ago was to rewrite the tutorial file to use Hunchentoot and cl-who, and post it as a wiki page, ostensibly so people can easily contribute great examples like the above, but really because I am too lazy to maintain that much documentation. I’ll put that on the list of things to do before 2007 is out.

By: Victor

Victor — Thu, 13 Dec 2007 12:39:05 +0000

Hmm… quite interesting. I think, I shall try to use Parenscript and Yahoo UI toolkit together to see if the match as neatly as script.aculo.us in the example.

Thanks for a nice tip!

By: Aankhen

Aankhen — Wed, 12 Dec 2007 15:33:02 +0000

“cl-who renders tags without content as a single , not as a pair of begin/end tags. I found out through experimentation that firefox barfed in that case and would render an empty page.”

Ah yes, you have a point there. Strange to say, though, I had the opposite experience when I once tried an empty `script’ element: IE barfed while Firefox handled it alright.

“I considered reading up on / tweaking the DOCTYPE declaration since it might be within its rights to do so, but went for the quick hack instead.”

It’s not the DOCTYPE in this case. Browsers treat all HTML as tag soup (unless it’s sent as `application/xhtml+xml’); when you say , their safest bet is to assume that you actually meant (i.e. just the opening tag).

“the “type=” came from the scriptaculous demos, the “language=” from the parenscript documentation. You may now conclude that I’m not a very advanced web coding monkey.”

Heh, fair enough.

“The js-script macro was adapted from the parenscript docs (see relevant comment above about my web-fu).”

I would yell at you for cargo-culting if I weren’t guilty myself of doing the same thing on a regular basis.

Thanks for fixing the quotes and the escaping, it’s much more usable now!

By: rudi

rudi — Wed, 12 Dec 2007 12:32:57 +0000

Hi, thanks for the comments!

cl-who renders tags without content as a single , not as a pair of begin/end tags. I found out through experimentation that firefox barfed in that case and would render an empty page. I considered reading up on / tweaking the DOCTYPE declaration since it might be within its rights to do so, but went for the quick hack instead.

the “type=” came from the scriptaculous demos, the “language=” from the parenscript documentation. You may now conclude that I’m not a very advanced web coding monkey.

The js-script macro was adapted from the parenscript docs (see relevant comment above about my web-fu).

Glad to be of service.