Backbone.js + CoffeeScriptでattr_reader

Rubyのattr_reader的なことをBackbone.js + CoffeeScriptでやると、綺麗に書ける。すばらしいですね。

ミソはCoffeeScriptのclass構文と=>構文。

Finally, class definitions are blocks of executable code, which make for interesting metaprogramming possibilities. Because in the context of a class definition, this is the class object itself (the constructor function), you can assign static properties by using
@property: value, and call functions defined in parent classes: @attr 'title', type: 'text'

http://coffeescript.org/#classes