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Coffeescript Application Development Cookbook

By : Hatfield

4.6 (5)

Coffeescript Application Development Cookbook

4.6 (5)

By: Hatfield

Overview of this book

If you are interested in developing modern applications, this book will help you leverage the vast JavaScript ecosystem while using an elegant language, helping you avoid the shortcomings of JavaScript.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Ready

1. Getting Ready

Introduction

Configuring your environment and tools

Configuring Sublime Text

Configuring Visual Studio

A quick dive into CoffeeScript

Debugging CoffeeScript using source maps

Debugging CoffeeScript using Node Inspector

2. Starting with the Basics

2. Starting with the Basics

Introduction

Working with strings

Working with numbers

Working with dates and times

Working with arrays

Working with classes

Dealing with the this keyword

3. Creating Client Applications

3. Creating Client Applications

Introduction

Working with jQuery

Working with Backbone

Working with AngularJS

Communicating in real time with Socket.io

4. Using Kendo UI for Desktop and Mobile Applications

4. Using Kendo UI for Desktop and Mobile Applications

Introduction

Using the Kendo UI Core widgets

Using the Kendo UI Core mobile widgets

5. Going Native with Cordova

5. Going Native with Cordova

Introduction

Creating a basic Cordova application

Using the camera

Using geolocation

Using contacts

Getting device information

6. Working with Databases

6. Working with Databases

Introduction

Working with SQLite

Working with Redis

Working with MongoDB

Working with CouchDB

7. Building Application Services

7. Building Application Services

Introduction

Working with base64 encoding

Working with domain name services

Parsing a URL into its various components

Creating RESTful web services

8. Using External Services

8. Using External Services

Introduction

Working with web services

Sending e-mail

Sending SMS and MMS messages

Working with Amazon's S3 storage

Transferring files via FTP

9. Testing Our Applications

9. Testing Our Applications

Introduction

Unit testing with QUnit

End-to-end testing with Mocha and Zombie.js

Stubbing and mocking with Sinon

10. Hosting Our Web Applications

10. Hosting Our Web Applications

Introduction

Compiling our source with Grunt

Preparing deployments for staging and production

Deploying our application to Heroku

Deploying our application to Microsoft Azure

11. Scripting for DevOps

11. Scripting for DevOps

Introduction

Executing shell commands with exec

Executing shell commands with spawn

Copying, moving, and deleting files and directories

Archiving files and directories

Parsing CSV files

Parsing fixed-width files

Padding and aligning output

Formatting dates with moment.js

Formatting numbers with accounting.js

Index

Index

Parsing fixed-width files

In this recipe, we will parse a fixed-width file by creating a simple streaming parser. Our sample file will contain fixed-width columns of strings, numbers, dates, and Boolean values of accounting data. Our goal is to count the records and get a total credit and debit amount for all records that have been posted.

Our sample file looks like the following:

Parsing fixed-width files

Getting ready

In this section, we will create our own parser for fixed-width files. When considering the features we would like for our basic parser, it should:

Work with a stream reader to allow parsing very large data files
Use a schema to define our column names, positions, sizes, and data types
Parse data to native types

We will use Node's built-in stream reader to read our data files.

We will create our schema as an array of column objects. Each column has a name, starting position (start), size, and type. Supported type values include string, float, date, and Boolean.

Because of the variety of date and number...

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

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Coffeescript Application Development Cookbook

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