"A Javascript library that makes working with the HTML5 Canvas element easy."

"To create js.js, we ran Emscripten on SpiderMonkey, the JavaScript engine used in Firefox. SpiderMonkey comprises about 300,000 lines of C and C++ code. Much of our effort was spent patching SpiderMonkey to get it to compile in Emscripten’s environment, a limited subset of libc. We also had to disable all assembly routines and just-in-time (JIT) compiling features of SpiderMonkey, since assembler is not available in JavaScript."

This is a great example of what JS can do. This uses YouTube's JS driven chromeless player and JSON interface for search.

Very nice article on javascript scoping and closures.

Closures, with examples.

Simple, and consistently effective, way to see if an object is an array in Javascript.

Another Python web framework.

Helma is an open source web application framework for fast and efficient scripting and serving of your websites and Internet applications.

Links to a bunch of tech talks by Douglas Crockford and John Resig

Douglas Crockford explains a parsing technique that works well with dynamic, functional languages, like javascript.

Javascript is actually fairly expressive and here are few of the nice, hidden gems of the language.

Good examples of JS best practices of having content and behavior separated as much as possible.

Javascript that will give you all the nice pseudo-classes like :first-child and :last-child that are in the CSS spec but not handled consistently in all browsers (or at all in IE6).

Nice jQuery plugin that aids in setting up both client-side and server-side form validation.

Simple function to make 'pretty dates' from a javascript Date object.

An invisible CAPTCHA replacement.

A true 'javascript-on-the-server' server. The app/website is written on server side just any server-side scripting language and is then executed and delivered to the user in its executed state. Interesting.

Comparison of different load times of the major javascript libraries with different compressions and different browsers.

Javascript reference from Simon Willison

Makes older versions of IE work like more like a standards-compliant browser.

For a simple-to-use CMS, this would probably be the killer feature.

Reasons why not to use prototype.js. Written in December '05...have things changed?

This is the solution to allow for transparent pngs in ie6.