The Little Book on CoffeeScript by MacCaw Alex

Author:MacCaw, Alex [Alex MacCaw]
Language: eng
Format: epub
Tags: COMPUTERS / Programming Languages / JavaScript
ISBN: 9781449325541
Publisher: O'Reilly Media
Published: 2012-01-20T16:00:00+00:00

Creating Applications

Using Cake for CoffeeScript compilation is fine for static sites, but for dynamic sites, we might as well integrate CoffeeScript compilation into the request/response cycle. Various integration solutions already exist for the popular backend languages and frameworks, such as Rails and Django.

The rest of this chapter explores how to actually structure and deploy CoffeeScript client-side applications. If you’re just using CoffeeScript on the server side, or your framework, such as Rails, already manages this, feel free to skip to Chapter 5.

For some reason, when developers build client-side JavaScript applications, tried and tested patterns and conventions often fly out the window, and the end result is a spaghetti mess of unmaintainable coupled JavaScript. I can’t stress enough how important application architecture is; if you’re writing any JavaScript/CoffeeScript beyond simple form validation, you should implement a form of application structure, such as MVC.

The secret to building maintainable large applications is not to build large applications. In other words, build a series of modular de-coupled components. Keep application logic as generic as possible, abstracting it out as appropriate. Lastly, separate out your logic into views, models, and controllers (MVC). Implementing MVC is beyond the scope of this chapter; for that, I recommend you check out my book on JavaScript Web Applications and use a framework like Backbone or Spine. Rather than that, here we’re going to cover structuring applications using CommonJS modules.

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