When your Ruby On Rails Website gets famous you're going to wish you implemented proper caching. Are you worried? Maybe just a little?This tutorial is going to show everything you need to know to use Caching in your Rails applications, so when you get digg'd or slashdot'd you won't be left begging your hosting provider for more CPU processing power.

The impending release of Ruby on Rails version 3 both refines and expands the capabilities of the popular Web application framework. Offering cleaner controllers and savvier SQL queries, you can expect to write less code than before. Better yet, you can include most of the components of Rails 3 in any Ruby application. Here's a look at what's changed for the better.

IronRuby is Microsoft's implementation of Ruby on the .NET framework. This article introduces IronRuby, and covers running Rails applications in IronRuby as well as potential issues to look out for

Ruby is a feature-rich, free, simple, extensible, portable, and object-oriented scripting language. As a powerful text processing language, it has immense capability. With powerful built-in libraries and a set of external libraries, Ruby is a viable option for a solution to any mundane text processing task that you might encounter.

jQuery Mobile provides a way to jumpstart development of mobile-friendly applications with semantic markup and the familiarity of jQuery. Rails provides an easy-to-use application environment for serving that markup and managing the data that backs it. By and large they work together flawlessly to create extraordinary mobile experiences, but there are a few integration points that bear highlighting. This article highlights and then smooths over the rough edges of the integration between these two frameworks.

While it certainly makes no attempt to constitute a complete guide to the Ruby language, this tutorial will introduce you to some of the basics of Ruby. We'll power through a crash-course in object oriented programming, covering the more common features of the language along the way, and leaving the more obscure aspects of Ruby for a dedicated reference guide. I'll also point out some of the advantages that Ruby has over other languages when it comes to developing applications for the Web.

Rather than preach on about the virtues of testing, I'm going to walk you through a simple example of test-driven development (TDD) using RSpec. The RSpec tool is a Ruby package that lets you build a specification alongside your software. This specification is actually a test that describes the behavior of your system. Here's the flow for development with RSpec:
* You write a test. This test describes the behavior of a small element of your system.
* You run the test. The test fails because you have not yet built the code for that part of your system. This important step tests your test case, verifying that your test case fails when it should.
* You write enough code to make the test pass.
* You run the tests and verify that they pass.

In essence, an RSpec developer turns test cases from red (failing) to green (passing) all day. It's a motivating process. In this article, I walk you through working with the basics in RSpec.

Sinatra is a library that allows you to build almost any kind of web-based application in a very simple manner. When you code in Sinatra you’re bound only by HTTP and your Ruby knowledge. You'll obviously want to start building tiny web-applications and small services, and that's just what we'll do in this article. By the end of this article by Satish Talim, you'll be able to understand:
* what Sinatra is
* how to install Sinatra and its dependencies
* how to build a tiny web-application
* how to deploy the tiny web-app to Heroku

This short paper is intended as a trial balloon of the evaluation of open source software, by measuring the productivity of programming language Ruby and web application framework Ruby on Rails, compared with other open source software.

The Java scripting API added in Java SE 6 and backward compatibility with Java SE 5 allows dozens of scripting languages to be called at run time from a Java application in a simple, unified way. Part 1 of this two-part article introduces the API's basic features. Part 2 exposes more of its power, demonstrating how external scripts written in Ruby, Groovy, and JavaScript can be executed and altered at run time to change business logic without stopping and restarting the application.