IdolHands.com :: Days in the Life of an Alpha Geek
Corey Ehmke's home on the web since 1996, IdolHands.com is an alpha-geek blog covering topics in Ruby on Rails and general web development, Mac OS X, electronics, robotics, and other stuff important in the lives of technologists and tinkerers.
There are more ways to compare arrays in Ruby than you might think, but they're definitely not all created equal. Choosing the wrong method can negatively impact the performance of your application.
Seer is a lightweight, semantically rich Ruby on Rails gem that provides a seamless interface to the Google Visualization API. You can easily create a graph or chart in a variety of formats and display it in your app with only a single line of code.
Histograms are often displayed as a tag-cloud-style heatmap. This article shows you how to easily create a heatmap in Rails and provides a link to a Rails plugin to let you automatically add this functionality to your project.
As the number of tests goes up in your Rails project, you'll find yourself spending more and more time waiting for the RSpec to finish. This article shows you how to track down slow-running examples to target for refactoring.
