Yesterday we were having a little water-cooler conversation admiring CoffeeScript.
Today, I Googled around to check out some criticism from people that had actually used it, and I found some interesting links, including the “A Case Against Using CoffeeScript”
There were a number of points, which really just point out that you can write bad code in any language. That’s not really a strike against CoffeeScript. Just don’t expect it to be idiot proof.
If CS were run directly by a VM in the browser with debugger support…well then we’d have something. Apparently coffeescript is influencing the future of JavasScript.
For now, what you gain in readability you lose in debuggability. Make fewer bugs that take longer to debug, or make more bugs that are easier to debug, where’s the break-even point?
But don’t take my opinion, there’s a great debate on it here: http://net.tutsplus.com/articles/interviews/should-you-learn-coffeescript/
The skinny: Definitely worth learning, maybe not worth using except for simpler one person projects.