[chadhietala]

We recently have switched over to using CoffeeScript in production and haven't looked back. One thing we found out real fast was to not compile the CS until you go to staging or QA. The way we get around this is using RequireJS (http://requirejs.org/) and the CoffeeScript Plugin(https://github.com/jrburke/require-cs). This buys you the ability to compile at runtime in the browser, so you don't have this mess of CoffeeScript files and compiled JS files in your source. When you are ready to build for production or QA you use RequireJS' optimization tools to concatenate, minify, obfuscate and compile the code. Hope that helps.

[functionform]

Found out the same thing. Developed mostly via TDD/QUnit in FF with Firebug only and occasionally running the entire suite with multiple browers. Even IE6 (via IETester) would compile several thousand lines in a few seconds or so.

Used tdd for almost everything even clicking ui widgets to populate from a rest resource and then validating the result. CS rocks!