A CoffeeScript Intervention (how to avoid common JS mistakes)

I'm the author. This is a short article in this month's PragPub (http://pragprog.com/magazines) to promote my new book on CoffeeScript:

http://pragprog.com/titles/tbcoffee/coffeescript

Repost at http://news.ycombinator.com/item?id=2514564 attracted more discussion.