Yehuda Katz: It’s all about the self

Yehuda Katz written an interesting piece about the nuances of metaprogramming in Ruby. He talks about classes, metaclasses and the importance of self, in particular.

A must read, if you are somewhat familiar, but not totally friends with the OO internals of Ruby.

John Resig: Learning Advanced JavaScript

John Resig, a well-known javascript hacker, author of the jQuery javascript libarary posted an interesting piece of javascript tutorial, which will guide you through the more confusing inner mechanics of JS with a do-it-yourself approach.

It comes with various easy and more tricky quizes and it’s an introduction of his javascript book, Secrets of the Javascript Ninja. Cool stuff.

(Via ejohn.com.)