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CoffeeScript Application Development

You're reading from   CoffeeScript Application Development What JavaScript user wouldn't want to be able to dramatically reduce application development time? This book will teach you the clean, elegant CoffeeScript language and show you how to build stunning applications.

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Product type Paperback
Published in Aug 2013
Publisher Packt
ISBN-13 9781782162667
Length 258 pages
Edition 1st Edition
Languages
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Author (1):
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Ian Greenleaf Young Ian Greenleaf Young
Author Profile Icon Ian Greenleaf Young
Ian Greenleaf Young
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Table of Contents (19) Chapters Close

CoffeeScript Application Development
Credits
About the Author
Acknowledgements
About the Reviewers
www.PacktPub.com
Preface
1. Running a CoffeeScript Program FREE CHAPTER 2. Writing Your First Lines of CoffeeScript 3. Building a Simple Application 4. Improving Our Application 5. Classes in CoffeeScript 6. Refactoring with Classes 7. Advanced CoffeeScript Usage 8. Going Asynchronous 9. Debugging 10. Using CoffeeScript in More Places 11. CoffeeScript on the Server Index

A final refactoring pass


Now that we've separated our logic and we have a feel for how it all fits together, let's take one more pass through our code looking for things that are out of place. Our first stop is this line, from PetListView#render:

@renderFeatured "Chupa", "Kelsey", "Flops"

The view shouldn't be concerned with the specific pets that are featured. Let's move this out of the view. Our controller (setup.coffee) is a pretty good place for this information. We'll add it to the data object there, and pass it to the PetListView:

shop = {
  owner: new Person "Ian"
  animals: Animal.loadSeedData()
  featured: [ "Chupa", "Kelsey", "Flops" ]
}
petViews = (new PetView pet for pet in shop.animals)
petListView = new PetListView petViews, shop.featured
mainView = new ShopView shop.owner, petListView
mainView.render()

Now we'll update PetListView to use this new argument:

class window.PetListView
  constructor: (@views, featuredPets) ->
    @featured = featuredPets
  render: ->
    @renderList...
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