Book Image

CoffeeScript Application Development

By : Ian Greenleaf Young
Book Image

CoffeeScript Application Development

By: Ian Greenleaf Young

Overview of this book

JavaScript is becoming one of the key languages in web development. It is now more important than ever across a growing list of platforms. CoffeeScript puts the fun back into JavaScript programming with elegant syntax and powerful features. CoffeeScript Application Development will give you an in-depth look at the CoffeeScript language, all while building a working web application. Along the way, you'll see all the great features CoffeeScript has to offer, and learn how to use them to deal with real problems like sprawling codebases, incomplete data, and asynchronous web requests. Through the course of this book you will learn the CoffeeScript syntax and see it demonstrated with simple examples. As you go, you'll put your new skills into practice by building a web application, piece by piece. You'll start with standard language features such as loops, functions, and string manipulation. Then, we'll delve into advanced features like classes and inheritance. Learn advanced idioms to deal with common occurrences like external web requests, and hone your technique for development tasks like debugging and refactoring. CoffeeScript Application Development will teach you not only how to write CoffeeScript, but also how to build solid applications that run smoothly and are a pleasure to maintain.
Table of Contents (19 chapters)
CoffeeScript Application Development
About the Author
About the Reviewers

Adding an endpoint for data

Now that we've got a dynamic server backing our app, one thing we can do to improve our application is handle the data a bit better. Right now, we simply throw the list of pets in with the rest of the code, where it's hard to get at and hard to modify.

First, let's move our list of pets to a separate file. It's easier to maintain the data when it isn't mixed with application logic, and this will provide a nice separation of concerns for later. We'll create a new directory named data and a new file named data/ This file will contain our entire list of pets that used to be in assets/js/

module.exports = [
  name: "Kelsey"
  type: "dog"
  age: 2
  breed: "Labrador"
  description: "A sweet and loyal dog. Loves to play fetch. Sometimes drinks out of the toilet."
#, ...

We're using the Node module.exports declaration here and assigning to it the value of the entire array. It declares that requiring this file will expose this array to other files...