Book Image

CoffeeScript Application Development Cookbook

By : Mike Hatfield
Book Image

CoffeeScript Application Development Cookbook

By: Mike Hatfield

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CoffeeScript Application Development Cookbook
Mike Hatfield
Mar, 2015 | 368 pages
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Table of Contents (18 chapters)
CoffeeScript Application Development Cookbook
CoffeeScript Application Development Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Ready
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
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
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
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
Going Native with Cordova
Introduction
Creating a basic Cordova application
Using the camera
Using geolocation
Using contacts
Getting device information
6
Working with Databases
Working with Databases
Introduction
Working with SQLite
Working with Redis
Working with MongoDB
Working with CouchDB
7
Building Application Services
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
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
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
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
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

Working with domain name services

Domain names provide convenient and easy-to-remember aliases for IP addresses so that we can navigate to websites and backend servers. Domain name services are responsible for converting domain names such as http://www.coffeescript.org or http://www.google.com to actual IP addresses.

In the following recipe, we will see how to look up the IP address for a domain name and how to perform a reverse lookup for an IP address.

Retrieving the IP address for a domain name

In this section, we will demonstrate how to look up an IP address for a given domain name.

Getting ready

We will be using Node's built-in DNS module to perform our domain lookups. There is nothing additional to install to perform this task.

How to do it...

We can perform a lookup in the following manner:

  1. Import Node's dns module:

    dns = require 'dns'

  2. Create a function to execute the lookup() function:

    lookupIpAddress = (domainName, callback) ->
  dns.lookup domainName, (err, ipAddress) ->
    if err...
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