Here's a bunch of the best open-source JavaScript libraries on the Web. JavaScript is a key part of AJAX, and AJAX is a key second and third-generation Web technology (I won't use the buzzword you know I'm thinking of).
I recently emailed this list to a colleague who mentioned that JavaScript can be a bit awkward to deal with, especially coming from the .NET or C/C++ world. These free code libraries will indeed help, as most of them provide a standard or codified syntax for dealing with the Document Object Model (DOM), AJAX, XML, and other key technologies, especially across the browsers. Enjoy!
The average developer starts writing some code for such-and-such application right? Then their app becomes popular, and they realize: uh oh…my data is not encrypted, my procs don’t scale, it’s all too slow, it needs history tables, it needs auditing, it needs to talk to some other systems, it has all kinds of locking issues, and so on.