Errata for Prototype and script.aculo.us

#46236: Book version May 2008 - version # 2008-5-5
"for (var index = 0, len = array.length; index < l; ++index)
// your code using index here."

index is checked against variable l, shouldn't this be the variable len which has been defined and set to zero, where is variable l defined and initialized?

#38847: This is actually in the "P2.0 printing, May 2008" version of the book, but that's not listed in your dropdown on the add erratum page. Anyway:

The code snippet towards the bottom of the page that reads:

for (var index = 0, len = array.length; index < l; ++index)

should compare "index < len", not "index < l", which obviously won't work.--Jason Black

#38544: All download links to media.pragprog.com return 404.
eg: media.pragprog.com/titles/cppsu/code/code/prototype/...

Removing the extra 'code' from the url, returns resources.
eg: media.pragprog.com/titles/cppsu/code/prototype/...
--Dougal MacPherson

#32401: The downloadable code for this book has a comment at the top of scriptaculous/autocomplete/advanced/suggestions.rhtml that does not appear in the sample code in the text.

I find that the code does not work unless the comment is removed from the sample code.

This is probably true on p. 324 also.--Alan Harper

#31990: Builder shorthand methods (perhaps all builder create methods too) require the second arg to be an array of elements and not the element itself. So for example this does not work.

P({ className: 'submission' }, INPUT({ type: 'submit', value: 'Sign in'}))

But this does.

P({ className: 'submission' }, [INPUT({ type: 'submit', value: 'Sign in'})])--Ken Collins